Rapid City, SD

4:37 AM MDT on May 21, 2013 (GMT -0600)
Elev: 3320 ft
Lon: 103.2° W
Lat: 44.1° N
Source
Rapid Fire Updates™
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Global: Violent tornado devastates Moore, Oklahoma
Active Advisory: Wind Advisory (US Severe Weather)
News
In Tornado's Wake, Worried Parents Seek Out Kids
May 21, 2013
Parents hope to be reunited with their missing children.
Tornado Took Similar Path to 1999 F5
May 21, 2013
Moore, Oklahoma is no stranger to devastating tornadoes.
Oklahoma Tornado: How to Help
May 20, 2013
The Salvation Army says it is activating disaster response teams and mobile feeding units to help residents and rescuers in Moore.
Moore, Okla. Tornado Timeline
May 21, 2013
On May 20, 2013, a large deadly tornado ripped through the Oklahoma City area. Click to read the timeline of the tornado event
At Least 20 Children Dead at Okla. Elementary
May 21, 2013
Several children have been pulled out of the rubble alive at a school in an Oklahoma City suburb.
Obama Declares Major Disaster in Oklahoma
May 21, 2013
President Barack Obama has declared a major disaster in Oklahoma as the state recovers from a massive tornado that ripped through the Oklahoma City suburbs Monday, killing dozens and flattening entire neighborhoods.
At Least 51 Dead, 20 of them Children
May 21, 2013
A monstrous tornado as much as a mile wide roared through the Oklahoma City suburbs Monday, flattening entire neighborhoods, setting buildings on fire and landing a direct blow on an elementary school.
Photos, Social Media Capture Terror of Okla. Tornadoes
May 20, 2013
Catastrophic tornadoes developed in Oklahoma on Monday. Here are photos and social media reports.
Huge Rock Crashes Into Moon, Sparks Giant Explosion
May 20, 2013
The moon has a new hole on its surface thanks to a boulder that slammed into it in March, creating the biggest explosion scientists have seen on the moon since they started monitoring it.
Deadly Rainstorms Kill 55 in Southern China
May 20, 2013
Chinese authorities say rainstorms that battered southern China this week have killed 55 people and left 14 others missing.
Photos: Deadly Tornado Outbreak Strikes Plains
May 20, 2013
A tornado outbreak struck the Plains states on May 19, 2013, leaving widespread damage in its wake.
Recap: Tornadoes Rake Oklahoma, Kansas, Iowa
May 20, 2013
The weather imagery, video and recap from tornadoes in the Plains on May 19, 2013.
Amazing Nature, Captured
May 20, 2013
These stunning images of nature captured across the globe will change the way you view our world.
Photos: Tornado Devastation in Plains
May 20, 2013
Photos and social media reports of severe weather damage over the weekend in Oklahoma, Iowa and Kansas.
Tornado Hits South of Oklahoma City
May 20, 2013
Continuing coverage of destructive severe weather.
Tornado Hits OKC Suburb, Kicking Up Debris
May 19, 2013
A tornado kicked up debris in an Oklahoma City suburb and threatened a number of tourist attractions on historic Route 66 but there were no immediate reports of injuries or major damage.
Tornado Touches Down in Wichita
May 19, 2013
State emergency officials are monitoring a tornado in the Wichita area.
BREAKING: Oklahoma Tornado Devastation
May 20, 2013
The latest breaking news from the scene, tornado warnings, photos and more.
Mice Return From a Month in Space
May 19, 2013
Mice and other critters return from a month long stay in space.
Heavy Rains Cause Flooding in North Georgia
May 20, 2013
Some locations have seen 5 to 6 inches of rainfall.
More News Articles
Weather Summary
Kari Kiefer
Weather Underground Forecast for Tuesday, May 21, 2013.

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

The nearly stationary low over the Northern Plains will gradually weaken as it shifts eastward into the Midwest on Tuesday, while the system's associated cold front trails 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 will set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of northeastern Texas, extreme southeastern Oklahoma, central and southern Arkansas, and northwestern Louisiana are at moderate risk of severe thunderstorm activity as environmental conditions remain favorable for tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of central and eastern Texas into the Upper Great Lakes are at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes.

Meanwhile, areas of heavy rain and widely scattered showers will continue 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 Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest will maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms are expected to persist in the Mid-Atlantic and southeastern corner of the nation.
Weather Underground Forecast for Tuesday, May 21, 2013.

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

The nearly stationary low over the Northern Plains will gradually weaken as it shifts eastward into the Midwest on Tuesday, while the system's associated cold front trails 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 will set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of northeastern Texas, extreme southeastern Oklahoma, central and southern Arkansas, and northwestern Louisiana are at moderate risk of severe thunderstorm activity as environmental conditions remain favorable for tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of central and eastern Texas into the Upper Great Lakes are at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes.

Meanwhile, areas of heavy rain and widely scattered showers will continue 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 Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest will maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms are expected to persist in the Mid-Atlantic and southeastern corner of the nation.
More News Articles

Rapid City Weather at a Glance

Updated 4:23 AM MDT
Elevation
3240 ft
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Now
Overcast
Overcast
Temperature
45.8 °F
Feels Like 44 °F
Wind(mph)
4.0
Sunrise / Set
5:20 AM
8:19 PM
Moon
Waxing Gibbous
Today
Rain Showers 55 °F
Rain Showers
70% chance of precipitation
Tonight
Rain Showers 41 °F
Rain Showers
30% chance of precipitation
Tomorrow
Chance of Rain 59 | 45 °F
Chance of Rain
20% chance of precipitation
Thursday
Partly Cloudy 70 | 48 °F
Partly Cloudy
Friday
Partly Cloudy 88 | 50 °F
Partly Cloudy
Saturday
Chance of a Thunderstorm 77 | 55 °F
Chance of T-storms
50% chance of precipitation
Today is forecast to be nearly the same temperature as yesterday.
Conditions
Pressure
29.86 in
Visibility
10.0 miles
Clouds
Scattered Clouds 800 ft
Mostly Cloudy 1400 ft
Overcast 2100 ft
Moisture
Humidity
91%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KRAP 210952Z AUTO 34022G29KT 10SM SCT008 BKN014 OVC021 07/06 A2985 RMK AO2 PK WND 34030/0903 RAE52 SLP111 P0001 T00720056 $
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Windchill
44 °F
Dew Point
43 °F
Wind
Speed / Dir
4.0 mph from NNW
Wind Gust
Health
UV
0.0 out of 16
Pollen
.90 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Sporadic
View Flu Map
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Source: BestForecast
Descriptive Forecast
Tuesday
rain Overcast with rain showers. High of 55F. Windy. Winds from the NNW at 25 to 30 mph with gusts to 40 mph. Chance of rain 70%.
Tuesday Night
nt_rain Mostly cloudy with rain showers. Low of 41F. Breezy. Winds from the NNW at 10 to 25 mph with gusts to 30 mph. Chance of rain 30%.
Wednesday
partlycloudy Partly cloudy with a chance of rain. High of 59F. Winds from the NNE at 10 to 15 mph. Chance of rain 20%.
Wednesday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 45F. Winds from the East at 5 to 15 mph.
Thursday
partlycloudy Partly cloudy. High of 70F. Breezy. Winds from the SE at 10 to 20 mph with gusts to 30 mph.
Thursday Night
nt_partlycloudy Overcast in the evening, then clear. Low of 48F. Breezy. Winds from the SSE at 20 to 25 mph.
Friday
partlycloudy Overcast in the morning, then clear. High of 88F. Breezy. Winds from the South at 10 to 25 mph shifting to the WSW in the afternoon.
Friday Night
nt_clear Clear. Low of 50F. Winds from the NNW at 5 to 10 mph shifting to the SW after midnight.
Saturday
chancetstorms Mostly cloudy with a chance of a thunderstorm and rain. High of 77F. Winds from the ESE at 5 to 15 mph. Chance of rain 50%.
Saturday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 55F. Breezy. Winds from the SE at 10 to 20 mph. Chance of rain 40%.
Sunday
chancetstorms Overcast with a chance of a thunderstorm. High of 70F. Winds from the SE at 10 to 15 mph. Chance of rain 50%.
Sunday Night
nt_cloudy Overcast with a chance of a thunderstorm. Low of 57F. Winds from the SE at 5 to 15 mph. Chance of rain 20%.
Monday
cloudy Overcast. High of 84F. Winds from the South at 5 to 10 mph.
Monday Night
nt_clear Clear. Low of 59F. Winds from the WSW at 10 to 15 mph.
Tuesday
chancetstorms Clear with a chance of a thunderstorm. High of 77F. Winds from the NNW at 5 to 15 mph. Chance of rain 40%.
Tuesday Night
nt_clear Clear. Low of 57F. Winds less than 5 mph.
Wednesday
clear Clear. High of 84F. Winds less than 5 mph.
Wednesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 55F. Winds less than 5 mph. Chance of rain 20%.
Thursday
partlycloudy Partly cloudy with a chance of a thunderstorm. High of 68F. Winds less than 5 mph. Chance of rain 20%.
Thursday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 55F. Winds less than 5 mph. Chance of rain 20%.
Friday
partlycloudy Clear. High of 70F. Winds from the NNW at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
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Nowcast
Wind Advisory in effect until noon MDT today...

Weather Forecast for Rapid City SD

View Calendar 10-Day Forecast for station KSDRAPID8

Tuesday, 21
Rain Showers
55 | 41 °F
Rain Showers
Chance of
Precipitation
70%
Wednesday, 22
Chance of Rain
59 | 45 °F
Chance of Rain
Chance of
Precipitation
20%
Thursday, 23
Partly Cloudy
70 | 48 °F
Partly Cloudy
Chance of
Precipitation
10%
Friday, 24
Partly Cloudy
88 | 50 °F
Partly Cloudy
Chance of
Precipitation
0%
Saturday, 25
Chance of a Thunderstorm
77 | 55 °F
Chance of T-storms
Chance of
Precipitation
50%
Sunday, 26
Chance of a Thunderstorm
70 | 57 °F
Chance of T-storms
Chance of
Precipitation
50%
Monday, 27
Overcast
84 | 59 °F
Overcast
Chance of
Precipitation
0%
Tuesday, 28
Chance of a Thunderstorm
77 | 57 °F
Chance of T-storms
Chance of
Precipitation
40%
Wednesday, 29
Clear
84 | 55 °F
Clear
Chance of
Precipitation
0%
Thursday, 30
Chance of a Thunderstorm
68 | 55 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Source: BestForecast at 2:08 AM MDT on May 21, 2013
Descriptive Forecast
Tuesday
rain Overcast with rain showers. High of 55F. Windy. Winds from the NNW at 25 to 30 mph with gusts to 40 mph. Chance of rain 70%.
Tuesday Night
nt_rain Mostly cloudy with rain showers. Low of 41F. Breezy. Winds from the NNW at 10 to 25 mph with gusts to 30 mph. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 45 | 39 45 | 41 46 | 41 45 | 39
Wind 27 mph NNW 25 mph NNW 22 mph NNW 10 mph NNW
Humidity 82% 88% 79% 80%
Chance of Precip. 100% 70% 70% 40%
Cloud Cover 95% 93% 88% 77%
Conditions Rain Showers Rain Showers Rain Showers Rain Showers
Sunrise & Sunset
5:20 AM
8:19 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.16], Average RMSE [1.41]
The National Weather Service forecast quality is fair. MaxT RMSE [2.66], Average RMSE [1.93] : Use NWS
Source: BestForecast at 2:08 AM MDT on May 21, 2013
Descriptive Forecast
Wednesday
partlycloudy Partly cloudy with a chance of rain. High of 59F. Winds from the NNE at 10 to 15 mph. Chance of rain 20%.
Wednesday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 45F. Winds from the East at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 43 | 39 54 | 45 57 | 43 46 | 45
Wind 10 mph NNW 11 mph NNE 13 mph East 7 mph ESE
Humidity 87% 71% 59% 94%
Chance of Precip. 30% 20% 10% 10%
Cloud Cover 73% 62% 43% 58%
Conditions Chance of Rain Chance of Rain Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:19 AM
8:20 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.66], Average RMSE [1.58]
The National Weather Service forecast quality is fair. MaxT RMSE [2.65], Average RMSE [2.20] : Use NWS
Source: BestForecast at 2:08 AM MDT on May 21, 2013
Descriptive Forecast
Thursday
partlycloudy Partly cloudy. High of 70F. Breezy. Winds from the SE at 10 to 20 mph with gusts to 30 mph.
Thursday Night
nt_partlycloudy Overcast in the evening, then clear. Low of 48F. Breezy. Winds from the SSE at 20 to 25 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 46 | 45 63 | 46 68 | 46 59 | 41
Wind 9 mph SE 17 mph SE 19 mph SE 19 mph SSE
Humidity 90% 55% 45% 52%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 77% 68% 47% 25%
Conditions Mostly Cloudy Mostly Cloudy Partly Cloudy Clear
Sunrise & Sunset
5:18 AM
8:21 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.98], Average RMSE [1.91]
The National Weather Service forecast quality is fair. MaxT RMSE [3.03], Average RMSE [2.91] : Use NWS
Source: BestForecast at 2:08 AM MDT on May 21, 2013
Descriptive Forecast
Friday
partlycloudy Overcast in the morning, then clear. High of 88F. Breezy. Winds from the South at 10 to 25 mph shifting to the WSW in the afternoon.
Friday Night
nt_clear Clear. Low of 50F. Winds from the NNW at 5 to 10 mph shifting to the SW after midnight.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 57 | 46 75 | 43 81 | 34 61 | 41
Wind 20 mph South 12 mph WSW 8 mph NNW 2 mph WSW
Humidity 68% 31% 18% 47%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 80% 1% 0% 0%
Conditions Mostly Cloudy Clear Clear Clear
Sunrise & Sunset
5:17 AM
8:22 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.14], Average RMSE [2.23]
The National Weather Service forecast quality is poor. MaxT RMSE [3.90], Average RMSE [3.15] : Use NWS
Source: BestForecast at 2:08 AM MDT on May 21, 2013
Descriptive Forecast
Saturday
chancetstorms Mostly cloudy with a chance of a thunderstorm and rain. High of 77F. Winds from the ESE at 5 to 15 mph. Chance of rain 50%.
Saturday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 55F. Breezy. Winds from the SE at 10 to 20 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 50 72 | 59 73 | 61 63 | 61
Wind 3 mph South 12 mph ESE 16 mph ESE 10 mph SE
Humidity 99% 61% 65% 93%
Chance of Precip. 10% 20% 30% 20%
Cloud Cover 0% 77% 85% 3%
Conditions Fog Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:16 AM
8:23 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.18], Average RMSE [2.35]
The National Weather Service forecast quality is poor. MaxT RMSE [4.75], Average RMSE [3.78] : Use NWS
Source: BestForecast at 2:08 AM MDT on May 21, 2013
Descriptive Forecast
Sunday
chancetstorms Overcast with a chance of a thunderstorm. High of 70F. Winds from the SE at 10 to 15 mph. Chance of rain 50%.
Sunday Night
nt_cloudy Overcast with a chance of a thunderstorm. Low of 57F. Winds from the SE at 5 to 15 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 55 63 | 61 63 | 63 63 | 63
Wind 8 mph SSE 15 mph SE 14 mph ESE 9 mph SE
Humidity 100% 93% 100% 100%
Chance of Precip. 10% 20% 30% 20%
Cloud Cover 99% 100% 100% 100%
Conditions Fog Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:16 AM
8:23 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.30], Average RMSE [2.63]
The National Weather Service forecast quality is poor. MaxT RMSE [6.38], Average RMSE [5.33] : Use NWS
Source: BestForecast at 2:08 AM MDT on May 21, 2013
Descriptive Forecast
Monday
cloudy Overcast. High of 84F. Winds from the South at 5 to 10 mph.
Monday Night
nt_clear Clear. Low of 59F. Winds from the WSW at 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 57 | 57 75 | 54 68 | 41 63 | 23
Wind 5 mph SSE 10 mph South 9 mph SW 12 mph West
Humidity 100% 48% 37% 21%
Chance of Precip. 10% 0% 10% 0%
Cloud Cover 100% 100% 99% 7%
Conditions Fog Overcast Overcast Clear
Sunrise & Sunset
5:15 AM
8:24 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [6.35], Average RMSE [4.64]
The National Weather Service forecast quality is poor. MaxT RMSE [7.20], Average RMSE [6.70] : Use NWS
Source: BestForecast at 2:08 AM MDT on May 21, 2013
Descriptive Forecast
Tuesday
chancetstorms Clear with a chance of a thunderstorm. High of 77F. Winds from the NNW at 5 to 15 mph. Chance of rain 40%.
Tuesday Night
nt_clear Clear. Low of 57F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 59 | 37 68 | 48 77 | 45 63 | 46
Wind 11 mph WNW 7 mph North 5 mph NNE 4 mph SE
Humidity 42% 49% 32% 57%
Chance of Precip. 0% 20% 20% 10%
Cloud Cover 0% 1% 19% 18%
Conditions Clear Chance of a Thunderstorm Chance of a Thunderstorm Clear
Sunrise & Sunset
5:14 AM
8:25 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [7.09], Average RMSE [5.07]
Source: BestForecast at 2:08 AM MDT on May 21, 2013
Descriptive Forecast
Wednesday
clear Clear. High of 84F. Winds less than 5 mph.
Wednesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 55F. Winds less than 5 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 57 | 50 72 | 48 84 | 48 59 | 52
Wind 1 mph North 2 mph NNE 4 mph NE 4 mph SSE
Humidity 75% 43% 27% 75%
Chance of Precip. 0% 0% 20% 20%
Cloud Cover 20% 22% 23% 50%
Conditions Clear Clear Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:14 AM
8:26 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [7.62], Average RMSE [4.26]
Source: BestForecast at 2:08 AM MDT on May 21, 2013
Descriptive Forecast
Thursday
partlycloudy Partly cloudy with a chance of a thunderstorm. High of 68F. Winds less than 5 mph. Chance of rain 20%.
Thursday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 55F. Winds less than 5 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 55 68 | 52 68 | 50 57 | 48
Wind 2 mph NNW 3 mph North 4 mph NNE 1 mph SE
Humidity 99% 56% 50% 71%
Chance of Precip. 20% 20% 20% 20%
Cloud Cover 78% 54% 30% 34%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:13 AM
8:27 PM
Source: BestForecast at 2:08 AM MDT on May 21, 2013
Descriptive Forecast
Friday
partlycloudy Clear. High of 70F. Winds from the NNW at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 48 68 | 43 70 | 37 57 | 39
Wind 4 mph NW 6 mph NNW 6 mph NNE 2 mph South
Humidity 75% 38% 31% 49%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 38% 30% 22% %
Conditions Partly Cloudy Partly Cloudy 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 (KRAP) 69 °F 44 °F
Record (KRAP) 92 °F (1954) 29 °F (1963)
Yesterday 53 °F 46 °F
Yesterday's Heating Degree Days: 15
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 5:20 AM MDT 8:19 PM MDT
Civil Twilight 4:45 AM MDT 8:53 PM MDT
Nautical Twilight 4:02 AM MDT 9:37 PM MDT
Astronomical Twilight 3:10 AM MDT 10:29 PM MDT
Moon 4:28 PM MDT 2:57 AM MDT
Length Of Visible Light 16h 07m
Length of Day
14h 58m
Tomorrow will be 1m 53s longer.
Waxing Gibbous, 82% 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
57 °F
Aberdeen
57 °F
Yankton
57 °F
Sisseton
55 °F
Sioux Falls
55 °F
Brookings
39 °F
Custer
42 °F
Spearfish
43 °F
Buffalo
44 °F
Ellsworth AFB
44 °F
Faith
Record Extremes
Snow Depth
Station Depth Elevation
North Rapid Creek 0 in 6130 ft
Snow Depth Reports — Snow Depth Map
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Aviation
City Temp. Conditions Updated
Rapid City 45 °F Overcast 3:52 AM MDT
Custer 41 °F Mostly Cloudy 3:53 AM MDT
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Flight To ETA Status
No flights were found.
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Type Condition
Flight Rule: MVFR (KRAP)
Wind Speed: 22.0 kts.
Wind Dir: 337° (NNW)
Ceiling: 1400 ft

METAR KRAP 210952Z AUTO 34022G29KT 10SM SCT008 BKN014 OVC021 07/06 A2985 RMK AO2 PK WND 34030/0903 RAE52 SLP111 P0001 T00720056 $

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Nearby Events
Event Date Forecast
No events within 10 mi of location. View all events.
Event data courtesy eviesays.com
Sports
Event Date Forecast
Tigers vs. Indians 7:05 PM EDT on May 21, 2013 Chance of a Thunderstorm, 79 °F
Yankees vs. Orioles 7:05 PM EDT on May 21, 2013 Chance of a Thunderstorm, 79 °F
Event Date Forecast
Livorno vs. Brescia 6:30 PM CEST on May 22, 2013 Clear, High 71° F/ 22° C
Empoli vs. Novara 8:45 PM CEST on May 22, 2013 Clear, High 69° F/ 21° C
Event Date Forecast
Coca-Cola 600 6:16 PM EDT on May 26, 2013 Chance of Rain, 70 °F
FedEx 400 benefiting Autism Speaks 1:15 PM EDT on June 02, 2013 Average High 81° F/ 27° C
Event Date Forecast
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 23, 2013 Partly Cloudy, 68 °F
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 24, 2013 Partly Cloudy, 68 °F
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Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Rapid Valley, Rapid City, SD 45.8 °F 44 °F 43 °F 91% NNW  at  4.0 mph - / hr 3240 ft 4:23 AM MDT Normal  
APRSWXNET Rapid City SD , Rapid City, SD 46 °F 40 °F 43 °F 88% North  at  12 mph 0.02 in / hr 3264 ft 4:18 AM MDT MADIS
Rapid City, SD 47.0 °F 44 °F 43 °F 86% WNW  at  6.0 mph 0.00 in / hr 3251 ft 4:30 AM MDT Normal  
MesoWest Rapid City/WFO , Rapid City, SD 45 °F 36 °F - - NNW  at  23 mph 0.00 in / hr 3378 ft 3:52 AM MDT MADIS
GRIZZLY61, Rapid City, SD 47.3 °F 44 °F 36 °F 64% NNW  at  7.6 mph 0.01 in / hr 3294 ft 4:37 AM MDT Rapid Fire  
Radar Hills, Box Elder, SD 45.0 °F 39 °F 43 °F 92% NNW  at  13.0 mph 0.00 in / hr 3152 ft 4:35 AM MDT Normal
MesoWest North side of westbound I90 , Box Elder, SD 43 °F 35 °F - - NNW  at  18 mph 0.00 in / hr 3085 ft 3:58 AM MDT MADIS
Bella & Buddy's Dog Leg Meadowbrook Golf, Rapid City, SD 47.0 °F 43 °F 40 °F 77% North  at  9.0 mph 0.00 in / hr 3346 ft 4:37 AM MDT Rapid Fire  
Edinborough, Rapid City, SD 44.5 °F 37 °F 42 °F 89% WNW  at  17.0 mph 0.01 in / hr 3722 ft 4:37 AM MDT Rapid Fire  
Prairie View Estates, Box Elder, SD 45.6 °F 39 °F 44 °F 95% NW  at  16.0 mph 0.02 in / hr 3064 ft 4:37 AM MDT Rapid Fire  
HADS RAPID CK BLO SEWAGE PLANT NEAR R SD, Rapid City, SD 46 °F 46 °F - - North  at  - 0.01 in / hr 3000 ft 4:00 AM MDT MADIS
nemo rd and norris peak rd, Rapid City, SD 41.9 °F 42 °F 41 °F 97% North  at  0.0 mph 0.04 in / hr 4265 ft 4:37 AM MDT Rapid Fire
Spring Creek Acres, Hermosa, SD 46.0 °F 42 °F 36 °F 67% WNW  at  7.0 mph 0.00 in / hr 3450 ft 4:37 AM MDT Rapid Fire
Elk Creek Ranchettes #2, Piedmont, SD 46.7 °F 40 °F 44 °F 90% NW  at  15.0 mph 0.00 in / hr 3225 ft 4:37 AM MDT Rapid Fire
Bogus Jim Road, Rapid City, SD 42.3 °F 42 °F 39 °F 87% WNW  at  2.5 mph 0.00 in / hr 4250 ft 4:37 AM MDT Rapid Fire  
Elk Creek Village, Piedmont, SD 45.3 °F 40 °F 44 °F 95% NNW  at  11.0 mph 0.00 in / hr 3576 ft 4:37 AM MDT Rapid Fire  
Rockerville, Rapid City, SD 42.2 °F 40 °F 39 °F 89% NNW  at  4.0 mph 0.01 in / hr 4531 ft 4:31 AM MDT Normal  
RAWS BAKER PARK SD, Keystone, SD 42 °F 38 °F 40 °F 91% NW  at  7 mph 0.01 in / hr 4673 ft 3:35 AM MDT MADIS
RAWS NEMO SD, Nemo, SD 41 °F 36 °F 39 °F 92% NNW  at  8 mph 0.06 in / hr 4644 ft 3:57 AM MDT MADIS
RAWS MT. RUSHMORE SD, Keystone, SD 40 °F 40 °F 38 °F 93% NW  at  3 mph 0.02 in / hr 5399 ft 4:13 AM MDT MADIS
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Wind Advisory
Mobile & Email Alerts Statement as of 3:00 AM MDT on May 21, 2013

... Wind Advisory remains in effect until noon MDT today...

A Wind Advisory remains in effect until noon MDT today.

* Timing... very windy through Tuesday morning.

* Winds... northwest 25 to 35 mph with gusts up to 45 mph.

* Impacts... sudden wind gusts can cause drivers to lose
control... especially in lightweight or high profile vehicles.

Precautionary/preparedness actions...

A Wind Advisory means 30 mph winds... or gusts over 45 mph... are
expected or occurring.