Lewistown, MT

8:36 PM MDT on May 21, 2013 (GMT -0600)
Elev: 3999 ft
Lon: 109.4° W
Lat: 47.0° N
Source
Rapid Fire Updates™
 Updated 8:36 PM MDT Get Free Weather Stickers® Share:
Your Custom Weather Sticker®

Copy the following lines of HTML:
Get more styles and options for your Weather Sticker® here.
Oklahoma Tornado: More coverage on Catastrophic EF-5 Tornado in Oklahoma
News
Miles and Minutes: Okla. Tornado By the Numbers
May 21, 2013
See the facts and figures that defined the Moore, Okla. tornado.
Moore Tornado a Rare EF5
May 21, 2013
EF5/F5 tornadoes are rare, but Moore has seen two of them in the past 15 years.
Power of Moore Tornado Dwarfs Hiroshima Atomic Bomb
May 21, 2013
Wind, humidity and rainfall combined precisely to create the massive killer tornado in Moore, Okla. And when they did, the awesome amount of energy released over that city dwarfed the power of the atomic bomb that leveled Hiroshima.
Okla Governor: We Will Rebuild After Tornado
May 21, 2013
The search and rescue efforts are ongoing in Moore, Okla. after a massive tornado levelled the town and local schools.
Weather Imagery Reveals Oklahoma Tornado
May 21, 2013
The Moore, Oklahoma tornado showed up vividly on satellite and radar.
PTSD Risk after the Oklahoma Tornado
May 21, 2013
In the wake of Mondays devastating tornado that ravaged the town of Moore, Okla., survivors are likely to feel incredible shock and numbness.
Tornado Leaves Small Hospital 'Pretty Much Destroyed'
May 21, 2013
Officials say a tornado hit a small hospital in suburban Oklahoma City, but all the 30 patients inside survived.
Obama: 'Americans From Every Corner of This Country Will Be With Them'
May 21, 2013
Obama has declared a major disaster in Oklahoma, ordering federal aid to supplement state and local recovery efforts. The president also spoke Monday with Oklahoma Gov. Mary Fallin and Rep. Tom Cole, whose home is in the heavily damaged town of Moore.
Why Don't More Homes in Oklahoma Have Basements?
May 21, 2013
The answer lies in the level of the water table and the soil texture in Oklahoma and in states across the Plains.
Photos: Deadly Tornado Outbreak Strikes Plains
May 21, 2013
A tornado outbreak struck the Plains states on May 19, 2013, leaving widespread damage in its wake.
Children and the Tornado: Helping Kids Cope
May 21, 2013
Any time children are involved in a catastrophe, emotional reactions among survivors and across the nation are particularly strong.
Recap: Tornadoes Rake Oklahoma, Kansas, Iowa
May 21, 2013
The weather imagery, video and recap from tornadoes in the Plains on May 19, 2013.
Tornado Took Similar Path to 1999 F5
May 21, 2013
Moore, Oklahoma is no stranger to devastating tornadoes.
'I Expected Chaos:' Scenes from Okla. School
May 21, 2013
A photographer who was among the first to arrive at an Oklahoma Elementary School after a tornado destroyed it, describes the heart-wrenching scene.
A Timeline of Deadly Events in Moore, Okla.
May 21, 2013
Check out this comprehensive timeline of the events that transpired in Moore, Okla.
In Tornado's Wake, Worried Parents Seek Out Kids
May 21, 2013
A desperate search was underway by parents looking to find children after the massive tornado.
Moore Already at Work on Recovery, Says Mayor
May 21, 2013
Glenn Lewis was the mayor of Moore, Okla., when the strongest tornado on record whipped the city in 1999, and he says the most recent storm won't deter the community from rebuilding.
Moore Survivor Finds Dog Buried Alive
May 21, 2013
Watch as a tornado survivor is interrupted in the middle of interview by a little dog digging out of rubble.
Oklahoma Tornado: How to Help
May 21, 2013
There are several agencies asking for donations to help those hit hard by the Oklahoma tornadoes.
Multiple Children Dead at Okla. School
May 21, 2013
More than a dozen children are dead in the devastating Moore, Okla. tornado.
More News Articles
Weather Summary
Kari Kiefer
Weather Underground midday recap for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather began to fire up again across the nation's mid-section on Tuesday.

The nearly stationary low over the Northern Plains showed signs of gradual weakening as it shifted eastward toward the Mississippi River Valley on Tuesday, while the system's associated cold front trailed southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of north-central/northeastern Texas, southern Arkansas, northwestern Louisiana and far southeastern Oklahoma remained at moderate risk of severe thunderstorm activity as environmental conditions remained favorable for tornadoes, damaging wind gusts, and very large hail. In particular, substantial severe weather was expected across north-central Texas to the

ArkLaTex region this afternoon and evening. Areas surrounding this moderate risk region from the Southern Plains to the Tennessee/Ohio valleys and the Lower Great Lakes/Northeast remained at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes. In addition to severe storms, heavy rains created chances of flood and possible isolated areas of flash flooding from parts eastern Oklahoma through northern Arkansas.

Meanwhile, areas of heavy rain and widely scattered showers continued near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the inland areas of the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms picked up across the Mid-Atlantic and southeastern corner of the nation through the afternoon.
Weather Underground midday recap for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather began to fire up again across the nation's mid-section on Tuesday.

The nearly stationary low over the Northern Plains showed signs of gradual weakening as it shifted eastward toward the Mississippi River Valley on Tuesday, while the system's associated cold front trailed southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of north-central/northeastern Texas, southern Arkansas, northwestern Louisiana and far southeastern Oklahoma remained at moderate risk of severe thunderstorm activity as environmental conditions remained favorable for tornadoes, damaging wind gusts, and very large hail. In particular, substantial severe weather was expected across north-central Texas to the

ArkLaTex region this afternoon and evening. Areas surrounding this moderate risk region from the Southern Plains to the Tennessee/Ohio valleys and the Lower Great Lakes/Northeast remained at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes. In addition to severe storms, heavy rains created chances of flood and possible isolated areas of flash flooding from parts eastern Oklahoma through northern Arkansas.

Meanwhile, areas of heavy rain and widely scattered showers continued near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the inland areas of the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms picked up across the Mid-Atlantic and southeastern corner of the nation through the afternoon.
More News Articles

Lewistown Weather at a Glance

Updated 8:36 PM MDT
Elevation
4189 ft
Report Station
You are about to report this weather station for bad data.

Please select the information which is incorrect and click 'Submit' otherwise click 'Cancel'.

— Cancel

Now
Clear
Clear
Temperature
54.1 °F
Feels Like 54.1 °F
Wind(mph)
13.0
Sunrise / Set
5:35 AM
8:54 PM
Moon
Waxing Gibbous
Tonight
Partly Cloudy 37 °F
Partly Cloudy
Tomorrow
Chance of a Thunderstorm 61 °F
Chance of a Thunderstorm
20% chance of precipitation
Tomorrow Night
Chance of a Thunderstorm 41 °F
Chance of T-storms
60% chance of precipitation
Thursday
Chance of a Thunderstorm 66 | 43 °F
Chance of T-storms
50% chance of precipitation
Friday
Chance of a Thunderstorm 66 | 39 °F
Chance of T-storms
50% chance of precipitation
Saturday
Partly Cloudy 66 | 43 °F
Partly Cloudy
Tomorrow is forecast to be Cooler than today.
Conditions
Pressure
29.91 in
Visibility
10.0 miles
Clouds
Clear -
Moisture
Humidity
42%
Rainfall
0.00 in
Snow Depth
2 in
METAR
METAR KLWT 220154Z AUTO 10016G22KT 10SM CLR 14/M02 A2993 RMK AO2 PK WND 10026/0126 SLP127 T01391017 TSNO
Don't speak METAR? Read our FAQ.
Weather Radio
Weather Radio Index
Temperature
Temperature
54.1 °F
37,45,52,57,59,61,62,64,64,63,63,62,59
Dew Point
32 °F
Wind
Speed / Dir
13.0 mph from ESE
Wind Gust
29.0 mph
Health
UV
0 out of 16
Pollen
9.00 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Sporadic
View Flu Map
Loading…
Source: BestForecast
Descriptive Forecast
Tuesday Night
nt_partlycloudy Partly cloudy. Low of 37F. Breezy. Winds from the ESE at 15 to 25 mph with gusts to 30 mph.
Wednesday
partlycloudy Partly cloudy with a chance of a thunderstorm and a chance of rain in the afternoon. High of 61F. Windy. Winds from the ESE at 15 to 30 mph with gusts to 35 mph. Chance of rain 20%.
Wednesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and a chance of rain, then rain after midnight. Low of 41F. Windy. Winds from the ESE at 15 to 30 mph with gusts to 35 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.
Thursday
chancetstorms Overcast with a chance of rain, then a chance of a thunderstorm and a chance of rain in the afternoon. High of 66F. Winds from the SE at 5 to 15 mph. Chance of rain 50%.
Thursday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm and rain showers in the evening, then overcast with a chance of rain. Low of 43F. Winds from the East at 5 to 15 mph shifting to the SE after midnight. Chance of rain 80% with rainfall amounts near 0.3 in. possible.
Friday
chancetstorms Clear with a chance of rain in the morning, then partly cloudy with a chance of a thunderstorm and a chance of rain. High of 66F. Winds from the South at 5 to 10 mph. Chance of rain 50%.
Friday Night
nt_clear Partly cloudy with a chance of a thunderstorm and a chance of rain in the evening, then clear. Low of 39F. Winds from the SE at 5 to 10 mph.
Saturday
partlycloudy Clear in the morning, then partly cloudy. High of 66F. Winds from the SSE at 5 to 10 mph shifting to the ESE in the afternoon.
Saturday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm and rain after midnight. Low of 43F. Winds from the SE at 5 to 10 mph. Chance of rain 20%.
Sunday
chancetstorms Partly cloudy with a chance of a thunderstorm and rain. High of 64F. Winds from the NNW at 5 to 10 mph. Chance of rain 50%.
Sunday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 43F. Winds from the NNW at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.
Monday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 63F. Winds less than 5 mph. Chance of rain 50%.
Monday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 45F. Winds from the WNW at 5 to 10 mph. Chance of rain 50%.
Tuesday
partlycloudy Partly cloudy. High of 68F. Winds from the WNW at 5 to 10 mph.
Tuesday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 50F. Winds from the SW at 5 to 10 mph. Chance of rain 60%.
Wednesday
mostlycloudy Mostly cloudy with a chance of a thunderstorm. High of 64F. Winds less than 5 mph. Chance of rain 20%.
Wednesday Night
nt_mostlycloudy Mostly cloudy with a chance of a thunderstorm. Low of 46F. Winds less than 5 mph. Chance of rain 20%.
Thursday
clear Clear. High of 63F. Winds from the WNW at 5 to 10 mph.
Thursday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 46F. Winds from the WNW at 5 to 10 mph. Chance of rain 20%.
Friday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 59F. Winds from the WNW at 10 to 15 mph. Chance of rain 30%.
Friday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 43F. Winds from the WNW at 5 to 15 mph. Chance of rain 30% with rainfall amounts near 0.4 in. possible.
Saturday
clear Clear. High of 59F. Winds from the WNW at 10 to 15 mph.
Saturday Night
nt_clear Clear. Low of 43F. Winds from the NW at 5 to 10 mph.
Loading…
 
First Previous Last Next  
Updated:  
 
 

 

Weather Forecast for Lewistown MT

View Calendar 10-Day Forecast for station KLWT

Tuesday, 21
Partly Cloudy
64 | 37 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 22
Chance of a Thunderstorm
61 | 41 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Thursday, 23
Chance of a Thunderstorm
66 | 43 °F
Chance of T-storms
Chance of
Precipitation
50%
Friday, 24
Chance of a Thunderstorm
66 | 39 °F
Chance of T-storms
Chance of
Precipitation
50%
Saturday, 25
Partly Cloudy
66 | 43 °F
Partly Cloudy
Chance of
Precipitation
0%
Sunday, 26
Chance of a Thunderstorm
64 | 43 °F
Chance of T-storms
Chance of
Precipitation
50%
Monday, 27
Chance of a Thunderstorm
63 | 45 °F
Chance of T-storms
Chance of
Precipitation
50%
Tuesday, 28
Partly Cloudy
68 | 50 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 29
Chance of a Thunderstorm
64 | 46 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Thursday, 30
Clear
63 | 46 °F
Clear
Chance of
Precipitation
0%
Source: BestForecast at 7:45 PM MDT on May 21, 2013
Descriptive Forecast
Tuesday Night
nt_partlycloudy Partly cloudy. Low of 37F. Breezy. Winds from the ESE at 15 to 25 mph with gusts to 30 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 37 | 36 57 | 36 61 | 36 41 | 34
Wind 6 mph South 10 mph East 19 mph ESE 17 mph ESE
Humidity 92% 43% 39% 75%
Chance of Precip. 10% 0% 0% 10%
Cloud Cover 36% 11% 31% 39%
Conditions Partly Cloudy Clear Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:35 AM
8:54 PM
The quality of the forecasted high temperature for this day is excellent. MaxT RMSE [1.29], Average RMSE [1.89]
The National Weather Service forecast quality is poor. MaxT RMSE [6.34], Average RMSE [1.53] : Use NWS
Source: BestForecast at 7:45 PM MDT on May 21, 2013
Descriptive Forecast
Wednesday
partlycloudy Partly cloudy with a chance of a thunderstorm and a chance of rain in the afternoon. High of 61F. Windy. Winds from the ESE at 15 to 30 mph with gusts to 35 mph. Chance of rain 20%.
Wednesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and a chance of rain, then rain after midnight. Low of 41F. Windy. Winds from the ESE at 15 to 30 mph with gusts to 35 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 37 | 36 54 | 43 59 | 41 45 | 39
Wind 16 mph SE 24 mph ESE 27 mph ESE 18 mph ESE
Humidity 89% 65% 50% 81%
Chance of Precip. 10% 20% 20% 50%
Cloud Cover 46% 59% 71% 69%
Conditions Partly Cloudy Chance of a Thunderstorm Chance of a Thunderstorm Rain
Sunrise & Sunset
5:34 AM
8:55 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.56], Average RMSE [2.06]
The National Weather Service forecast quality is excellent. MaxT RMSE [1.38], Average RMSE [1.70] : Use NWS
Source: BestForecast at 7:45 PM MDT on May 21, 2013
Descriptive Forecast
Thursday
chancetstorms Overcast with a chance of rain, then a chance of a thunderstorm and a chance of rain in the afternoon. High of 66F. Winds from the SE at 5 to 15 mph. Chance of rain 50%.
Thursday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm and rain showers in the evening, then overcast with a chance of rain. Low of 43F. Winds from the East at 5 to 15 mph shifting to the SE after midnight. Chance of rain 80% with rainfall amounts near 0.3 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 41 | 39 57 | 46 66 | 50 50 | 43
Wind 12 mph ESE 8 mph West 14 mph East 6 mph SE
Humidity 93% 65% 53% 77%
Chance of Precip. 60% 50% 50% 80%
Cloud Cover 73% 90% 67% 100%
Conditions Chance of Rain Chance of a Thunderstorm Chance of a Thunderstorm Chance of Rain
Sunrise & Sunset
5:33 AM
8:56 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.74], Average RMSE [1.84]
The National Weather Service forecast quality is excellent. MaxT RMSE [1.43], Average RMSE [1.83] : Use NWS
Source: BestForecast at 7:45 PM MDT on May 21, 2013
Descriptive Forecast
Friday
chancetstorms Clear with a chance of rain in the morning, then partly cloudy with a chance of a thunderstorm and a chance of rain. High of 66F. Winds from the South at 5 to 10 mph. Chance of rain 50%.
Friday Night
nt_clear Partly cloudy with a chance of a thunderstorm and a chance of rain in the evening, then clear. Low of 39F. Winds from the SE at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 45 | 37 61 | 41 61 | 37 43 | 30
Wind 8 mph SSW 6 mph South 7 mph South 4 mph SE
Humidity 78% 47% 42% 62%
Chance of Precip. 80% 50% 50% 10%
Cloud Cover 0% 44% 39% 24%
Conditions Chance of Rain Chance of a Thunderstorm Chance of a Thunderstorm Clear
Sunrise & Sunset
5:32 AM
8:57 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.39], Average RMSE [2.26]
The National Weather Service forecast quality is good. MaxT RMSE [1.66], Average RMSE [2.62] : Use NWS
Source: BestForecast at 7:45 PM MDT on May 21, 2013
Descriptive Forecast
Saturday
partlycloudy Clear in the morning, then partly cloudy. High of 66F. Winds from the SSE at 5 to 10 mph shifting to the ESE in the afternoon.
Saturday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm and rain after midnight. Low of 43F. Winds from the SE at 5 to 10 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 39 | 30 64 | 36 66 | 37 54 | 28
Wind 7 mph SSE 3 mph ESE 6 mph ESE 7 mph South
Humidity 69% 33% 33% 37%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 11% 47% 51% 63%
Conditions Clear Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:31 AM
8:58 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.14], Average RMSE [2.32]
The National Weather Service forecast quality is fair. MaxT RMSE [3.00], Average RMSE [3.71] : Use NWS
Source: BestForecast at 7:45 PM MDT on May 21, 2013
Descriptive Forecast
Sunday
chancetstorms Partly cloudy with a chance of a thunderstorm and rain. High of 64F. Winds from the NNW at 5 to 10 mph. Chance of rain 50%.
Sunday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 43F. Winds from the NNW at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 43 | 41 63 | 48 63 | 50 54 | 46
Wind 6 mph WNW 4 mph NNW 7 mph NNE 5 mph NNW
Humidity 94% 58% 63% 80%
Chance of Precip. 20% 20% 30% 30%
Cloud Cover 80% 60% 47% 84%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:30 AM
8:59 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.20], Average RMSE [3.34]
The National Weather Service forecast quality is poor. MaxT RMSE [3.74], Average RMSE [4.20] : Use NWS
Source: BestForecast at 7:45 PM MDT on May 21, 2013
Descriptive Forecast
Monday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 63F. Winds less than 5 mph. Chance of rain 50%.
Monday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 45F. Winds from the WNW at 5 to 10 mph. Chance of rain 50%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 43 | 43 61 | 48 61 | 48 52 | 46
Wind 5 mph WNW 4 mph NNW 7 mph WNW 6 mph West
Humidity 100% 63% 65% 77%
Chance of Precip. 10% 30% 20% 10%
Cloud Cover 90% 100% 95% 80%
Conditions Fog Chance of a Thunderstorm Chance of a Thunderstorm Mostly Cloudy
Sunrise & Sunset
5:29 AM
9:00 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.48], Average RMSE [4.40]
The National Weather Service forecast quality is poor. MaxT RMSE [5.19], Average RMSE [5.38] : Use NWS
Source: BestForecast at 7:45 PM MDT on May 21, 2013
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy. High of 68F. Winds from the WNW at 5 to 10 mph.
Tuesday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 50F. Winds from the SW at 5 to 10 mph. Chance of rain 60%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 48 | 45 64 | 41 68 | 43 54 | 41
Wind 6 mph WSW 9 mph WNW 4 mph WNW 7 mph South
Humidity 84% 41% 39% 63%
Chance of Precip. 10% 10% 20% 30%
Cloud Cover 95% 89% 35% 71%
Conditions Overcast Overcast Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:28 AM
9:01 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [6.60], Average RMSE [4.99]
The National Weather Service forecast quality is poor. MaxT RMSE [6.45], Average RMSE [6.47] : Use NWS
Source: BestForecast at 7:45 PM MDT on May 21, 2013
Descriptive Forecast
Wednesday
mostlycloudy Mostly cloudy with a chance of a thunderstorm. High of 64F. Winds less than 5 mph. Chance of rain 20%.
Wednesday Night
nt_mostlycloudy Mostly cloudy with a chance of a thunderstorm. Low of 46F. Winds less than 5 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 41 59 | 45 57 | 48 50 | 45
Wind 6 mph SSW 2 mph NW 2 mph NNE 1 mph NW
Humidity 71% 58% 71% 77%
Chance of Precip. 10% 20% 20% 20%
Cloud Cover 90% 99% 83% 100%
Conditions Overcast Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:28 AM
9:02 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [6.28], Average RMSE [6.34]
Source: BestForecast at 7:45 PM MDT on May 21, 2013
Descriptive Forecast
Thursday
clear Clear. High of 63F. Winds from the WNW at 5 to 10 mph.
Thursday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 46F. Winds from the WNW at 5 to 10 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 46 | 41 57 | 37 61 | 36 50 | 37
Wind 6 mph WNW 7 mph WNW 6 mph NW 5 mph WNW
Humidity 78% 47% 38% 63%
Chance of Precip. 10% 0% 20% 20%
Cloud Cover 68% 38% 8% 36%
Conditions Mostly Cloudy Partly Cloudy Chance of Rain Chance of a Thunderstorm
Sunrise & Sunset
5:27 AM
9:03 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [6.28], Average RMSE [5.53]
Source: BestForecast at 7:45 PM MDT on May 21, 2013
Descriptive Forecast
Friday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 59F. Winds from the WNW at 10 to 15 mph. Chance of rain 30%.
Friday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Low of 43F. Winds from the WNW at 5 to 15 mph. Chance of rain 30% with rainfall amounts near 0.4 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 46 | 41 57 | 46 59 | 50 46 | 46
Wind 10 mph WNW 12 mph WNW 10 mph NW 6 mph WNW
Humidity 78% 65% 74% 100%
Chance of Precip. 30% 30% 30% 30%
Cloud Cover 63% 67% 70% 74%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
Sun does not rise
Source: BestForecast at 7:45 PM MDT on May 21, 2013
Descriptive Forecast
Saturday
clear Clear. High of 59F. Winds from the WNW at 10 to 15 mph.
Saturday Night
nt_clear Clear. Low of 43F. Winds from the NW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 43 | 43 57 | 41 59 | 39 46 | 37
Wind 9 mph WNW 11 mph WNW 8 mph NW 4 mph NW
Humidity 100% 54% 47% 72%
Chance of Precip. 30% 10% 0% 0%
Cloud Cover 78% % % %
Conditions Chance of Rain Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 21, 2013 Max Temp Min Temp
Normal (KLWT) 64 °F 39 °F
Record (KLWT) 89 °F (1928) 24 °F (1931)
Yesterday 63 °F 40 °F
Yesterday's Heating Degree Days: 13
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Astronomy
May. 21, 2013 Rise Set
Actual Time 5:35 AM MDT 8:54 PM MDT
Civil Twilight 4:58 AM MDT 9:31 PM MDT
Nautical Twilight 4:09 AM MDT 10:20 PM MDT
Astronomical Twilight 3:07 AM MDT 11:22 PM MDT
Moon 4:58 PM MDT (5/21) 3:20 AM MDT (5/21)
Length Of Visible Light 16h 33m
Length of Day
15h 19m
Tomorrow will be 2m 7s longer.
Waxing Gibbous, 87% of the Moon is Illuminated
Today
Waxing Gibbous
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
78 °F
Kalispell
77 °F
Missoula
73 °F
Helena
72 °F
Dillon
72 °F
Cut Bank
28 °F
West Yellowstone
33 °F
Havre
34 °F
Lewistown
34 °F
Butte
34 °F
Bozeman
Record Extremes
Snow Depth
Station Depth Elevation
Crystal Lake 2 in 6050 ft
Spur Park 35 in 8100 ft
Onion Park 4 in 7410 ft
Stringer Creek 0 in 6550 ft
Porcupine 1 in 6500 ft
Snow Depth Reports — Snow Depth Map
Follow us on Twitter Find us on Facebook Community
WunderPhotos®
Nice Break
Very cold weather for the time of the year
• • • • • • • • • •
Uploaded by: RevMac
1,613,765 photos uploaded!
Upload a photo now
Visit WunderPhotos
WunderBlogs®

There are no recent blogs in this area. Why not create your own?

Visit WunderBlogs
Travel & Activities
Travel Planning
Travel Planner Road Trip Planner
Destination? *
When are you going?
to
Is there an activity you would like to explore?
* Required field
View all Travel Tools
Aviation
City Temp. Conditions Updated
Lewistown 57 °F Clear 7:54 PM MDT
Malmstrom AFB 64 °F Clear 7:56 PM MDT
Billings 59 °F Partly Cloudy 7:53 PM MDT
View all Aviation Tools
Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: VFR (KLWT)
Wind Speed: 16.0 kts.
Wind Dir: 115° (ESE)
Ceiling: Unlimited

METAR KLWT 220154Z AUTO 10016G22KT 10SM CLR 14/M02 A2993 RMK AO2 PK WND 10026/0126 SLP127 T01391017 TSNO

View all Reports & Maps
Nearby Events
Event Date Forecast
No events within 10 mi of location. View all events.
Event data courtesy eviesays.com
Sports
View all Sports Weather
Videos
Year In Weather 2012

Watch the nearly year-long satellite animation as Weather Underground calls out the most significant weather events of the past year, including Superstorm Sandy and Hurricane Isaac.

Visit Our Video Section
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
3/4 mile S of Lewistown, Lewistown, Mt 54.1 °F - 32 °F 42% ESE  at  13.0 mph 0.00 in / hr 4189 ft 8:36 PM MDT Rapid Fire  
MesoWest Lewistown Divide MT-200 MP 90.3, Lewistown, MT 59 °F - 29 °F 32% ENE  at  14 mph 0.00 in / hr 4624 ft 5:24 PM MDT MADIS
MesoWest MOCCASIN , Moccasin, MT 60 °F - 28 °F 29% East  at  19 mph 0.00 in / hr 4255 ft 7:00 PM MDT MADIS
MesoWest CRYSTAL LAKE , Buffalo, MT 50 °F - - - North  at  - 0.00 in / hr 6049 ft 7:00 PM MDT MADIS
RAWS JUDITH PEAK MT, Hilger, MT 46 °F 39 °F 24 °F 41% ESE  at  18 mph 0.00 in / hr 6428 ft 7:52 PM MDT MADIS
Would you like to share your weather data with the rest of the world? Add Your Weather Station!