Claremont, CA

4:28 AM PDT on May 25, 2012 (GMT -0700)
Elev: 1371 ft
Lon: 117.7° W
Lat: 34.1° N
Source
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Tropical Weather: Invest 94 (North Atlantic) Hurricane Bud (East Pacific) Typhoon Sanvu (Western Pacific)
Weather Summary
Jessica Parker
Weather Underground Forecast for Friday, May 25, 2012.

Expect more active weather to develop across the Great Lakes on Friday, as a low pressure system moves from the Upper Midwest into eastern Canada. This system will push a cold front over the Great Lakes and Midwest, producing scattered showers and thunderstorms throughout the day. There is a slight chance that some of these storms will turn severe with strong winds and large hail. Rainfall totals will range from 1 to 2 inches, with over 2 inches likely in areas of severe weather development.

Behind this activity in the West, a low pressure system will move over the Great Basin and into the Southern Rockies. Flow around this system will produce cooler temperatures across the West, while also triggering scattered showers over the Pacific Northwest, northern California, and Intermountain West. Snow showers may develop again across the highest elevations of the Northern Rockies.

Meanwhile in the East, high pressure builds from the Plains, over the Mississippi River Valley, and into the Eastern US. This will keep moisture away to the north, allowing for dry, sunny, and warm conditions. High temperatures will range in the 80s and 90s from the Central Plains through the Eastern Valleys, with parts of the Southern US reaching into the lower 100s.
Weather Underground Forecast for Friday, May 25, 2012.

Expect more active weather to develop across the Great Lakes on Friday, as a low pressure system moves from the Upper Midwest into eastern Canada. This system will push a cold front over the Great Lakes and Midwest, producing scattered showers and thunderstorms throughout the day. There is a slight chance that some of these storms will turn severe with strong winds and large hail. Rainfall totals will range from 1 to 2 inches, with over 2 inches likely in areas of severe weather development.

Behind this activity in the West, a low pressure system will move over the Great Basin and into the Southern Rockies. Flow around this system will produce cooler temperatures across the West, while also triggering scattered showers over the Pacific Northwest, northern California, and Intermountain West. Snow showers may develop again across the highest elevations of the Northern Rockies.

Meanwhile in the East, high pressure builds from the Plains, over the Mississippi River Valley, and into the Eastern US. This will keep moisture away to the north, allowing for dry, sunny, and warm conditions. High temperatures will range in the 80s and 90s from the Central Plains through the Eastern Valleys, with parts of the Southern US reaching into the lower 100s.
Weather Underground Broadcast Network

Claremont Weather at a Glance

Updated 4:26 AM PDT
Elevation
1256 ft
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Now
Overcast
Overcast
Temperature
53.6 °F
Feels Like 53.6 °F
Wind(mph)
7.2
Sunrise / Set
5:42 AM
7:53 PM
Moon
Waxing Crescent
Today
Chance of Rain 64 °F
Chance of Rain
30% chance of precipitation
Tonight
Chance of Rain 45 °F
Chance of Rain
30% chance of precipitation
Tomorrow
Partly Cloudy 64 | 48 °F
Partly Cloudy
Sunday
Partly Cloudy 77 | 50 °F
Partly Cloudy
Monday
Clear 75 | 50 °F
Clear
Tuesday
Clear 81 | 50 °F
Clear
Today is forecast to be Much Cooler than yesterday.
Conditions
Pressure
29.68 in
Visibility
10.0 miles
Clouds
Overcast 1800 ft
Moisture
Humidity
98%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KONT 251053Z 27007KT 10SM OVC018 15/11 A2970 RMK AO2 SLP049 T01500111
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
53.6 °F
Dew Point
53 °F
Wind
Speed / Dir
7.2 mph from WNW
Wind Gust
Health
UV
0 out of 16
Pollen
4.80 out of 12
Pollen Forecast
Ozone
Good
Flu Activity
Local Activity
View Flu Map
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Source: BestForecast
Descriptive Forecast
Friday
chancerain Overcast with a chance of rain in the morning, then partly cloudy with a chance of rain. High of 64F. Winds from the SW at 5 to 15 mph. Chance of rain 30%.
Friday Night
nt_chancerain Partly cloudy with a chance of rain. Low of 45F. Winds from the SW at 5 to 15 mph. Chance of rain 30%.
Saturday
partlycloudy Partly cloudy. High of 64F. Winds from the SSW at 10 to 15 mph.
Saturday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 48F. Winds from the SE at 5 to 15 mph.
Sunday
partlycloudy Partly cloudy. Fog early. High of 77F. Winds from the WNW at 5 to 10 mph shifting to the SW in the afternoon.
Sunday Night
nt_clear Clear. Low of 50F. Winds less than 5 mph.
Monday
clear Clear. High of 75F. Winds from the WNW at 5 to 15 mph shifting to the SW in the afternoon.
Monday Night
nt_clear Clear. Low of 50F. Winds less than 5 mph.
Tuesday
clear Clear. High of 81F. Winds from the SW at 5 to 15 mph.
Tuesday Night
nt_clear Clear. Low of 50F. Winds less than 5 mph.
Wednesday
clear Clear. High of 81F. Winds from the WSW at 5 to 15 mph.
Wednesday Night
nt_clear Clear. Low of 59F. Winds less than 5 mph.
Thursday
clear Clear. High of 84F. Winds from the WSW at 5 to 10 mph.
Thursday Night
nt_clear Clear. Low of 57F. Winds less than 5 mph.
Friday
clear Clear. High of 84F. Winds from the WSW at 5 to 15 mph.
Friday Night
nt_clear Clear. Low of 59F. Winds less than 5 mph.
Saturday
clear Clear. High of 84F. Winds from the SW at 5 to 15 mph.
Saturday Night
nt_clear Clear. Low of 57F. Winds less than 5 mph.
Sunday
clear Clear. High of 82F. Winds from the SW at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 55F. Winds from the SW at 5 to 10 mph.
Monday
clear Clear. High of 82F. Winds from the SW at 5 to 15 mph.
Monday Night
nt_clear Clear. Low of 55F. Winds from the SW at 5 to 10 mph.
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Forecast

View Calendar 10-Day Forecast for station KCACLARE4

Friday, 25
Chance of Rain
64 | 45 °F
Chance of Rain
Chance of
Precipitation
30%
Saturday, 26
Partly Cloudy
64 | 48 °F
Partly Cloudy
Chance of
Precipitation
10%
Sunday, 27
Partly Cloudy
77 | 50 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 28
Clear
75 | 50 °F
Clear
Chance of
Precipitation
0%
Tuesday, 29
Clear
81 | 50 °F
Clear
Chance of
Precipitation
0%
Wednesday, 30
Clear
81 | 59 °F
Clear
Chance of
Precipitation
0%
Thursday, 31
Clear
84 | 57 °F
Clear
Chance of
Precipitation
0%
Friday, 1
Clear
84 | 59 °F
Clear
Chance of
Precipitation
0%
Saturday, 2
Clear
84 | 57 °F
Clear
Chance of
Precipitation
0%
Sunday, 3
Clear
82 | 55 °F
Clear
Chance of
Precipitation
0%
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Friday
chancerain Overcast with a chance of rain in the morning, then partly cloudy with a chance of rain. High of 64F. Winds from the SW at 5 to 15 mph. Chance of rain 30%.
Friday Night
nt_chancerain Partly cloudy with a chance of rain. Low of 45F. Winds from the SW at 5 to 15 mph. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 54 | 54 57 | 51 57 | 46 46 | 44
Wind 4 mph SSW 10 mph SSW 12 mph SW 2 mph SW
Humidity 100% 79% 67% 89%
Chance of Precip. 10% 30% 30% 30%
Cloud Cover 99% 68% 55% 63%
Conditions Overcast Chance of Rain Chance of Rain Chance of Rain
Sunrise & Sunset
5:42 AM
7:53 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.82], Average RMSE [1.44]
The National Weather Service forecast quality is fair. MaxT RMSE [3.03], Average RMSE [2.04] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Saturday
partlycloudy Partly cloudy. High of 64F. Winds from the SSW at 10 to 15 mph.
Saturday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 48F. Winds from the SE at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 48 | 43 56 | 47 59 | 49 49 | 49
Wind 9 mph SSW 12 mph SW 12 mph SW 7 mph South
Humidity 87% 74% 71% 100%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 57% 39% 41% 42%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Fog
Sunrise & Sunset
5:42 AM
7:53 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.26], Average RMSE [1.68]
The National Weather Service forecast quality is fair. MaxT RMSE [3.33], Average RMSE [2.32] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Sunday
partlycloudy Partly cloudy. Fog early. High of 77F. Winds from the WNW at 5 to 10 mph shifting to the SW in the afternoon.
Sunday Night
nt_clear Clear. Low of 50F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 46 68 | 53 71 | 50 53 | 47
Wind 8 mph North 7 mph SW 8 mph SW 1 mph WNW
Humidity 81% 59% 48% 86%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 42% 6% 6% 0%
Conditions Fog Clear Clear Clear
Sunrise & Sunset
5:41 AM
7:54 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.21], Average RMSE [1.91]
The National Weather Service forecast quality is poor. MaxT RMSE [3.61], Average RMSE [2.42] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Monday
clear Clear. High of 75F. Winds from the WNW at 5 to 15 mph shifting to the SW in the afternoon.
Monday Night
nt_clear Clear. Low of 50F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 43 72 | 49 71 | 50 54 | 48
Wind 4 mph North 7 mph SW 10 mph SW 2 mph SSE
Humidity 63% 46% 45% 79%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:41 AM
7:55 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.03], Average RMSE [1.98]
The National Weather Service forecast quality is poor. MaxT RMSE [3.90], Average RMSE [2.31] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Tuesday
clear Clear. High of 81F. Winds from the SW at 5 to 15 mph.
Tuesday Night
nt_clear Clear. Low of 50F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 44 70 | 54 73 | 56 53 | 51
Wind 1 mph SE 9 mph SW 9 mph SW 1 mph South
Humidity 66% 55% 54% 90%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:41 AM
7:55 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.81], Average RMSE [1.57]
The National Weather Service forecast quality is poor. MaxT RMSE [4.15], Average RMSE [1.99] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Wednesday
clear Clear. High of 81F. Winds from the WSW at 5 to 15 mph.
Wednesday Night
nt_clear Clear. Low of 59F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 53 75 | 58 73 | 58 57 | 56
Wind 2 mph NW 7 mph WSW 9 mph SW 1 mph WSW
Humidity 92% 56% 58% 93%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:41 AM
7:55 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.16], Average RMSE [1.80]
The National Weather Service forecast quality is poor. MaxT RMSE [4.32], Average RMSE [1.87] : Use NWS
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Thursday
clear Clear. High of 84F. Winds from the WSW at 5 to 10 mph.
Thursday Night
nt_clear Clear. Low of 57F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 61 | 55 75 | 61 77 | 63 60 | 58
Wind 2 mph NNW 6 mph WSW 8 mph SW 1 mph WSW
Humidity 85% 60% 60% 92%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:41 AM
7:55 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.87], Average RMSE [2.24]
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Friday
clear Clear. High of 84F. Winds from the WSW at 5 to 15 mph.
Friday Night
nt_clear Clear. Low of 59F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 56 77 | 61 75 | 58 60 | 58
Wind 1 mph WNW 9 mph SW 10 mph SW 3 mph SW
Humidity 85% 58% 55% 91%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 6%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:41 AM
7:55 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.17], Average RMSE [2.51]
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Saturday
clear Clear. High of 84F. Winds from the SW at 5 to 15 mph.
Saturday Night
nt_clear Clear. Low of 57F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 63 | 60 77 | 63 75 | 56 60 | 53
Wind 1 mph WSW 5 mph SSW 10 mph WSW 4 mph SW
Humidity 92% 61% 51% 79%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 13% 9% 5% 9%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:41 AM
7:55 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.29], Average RMSE [2.78]
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Sunday
clear Clear. High of 82F. Winds from the SW at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 55F. Winds from the SW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 59 | 47 75 | 56 72 | 49 58 | 42
Wind 2 mph SW 5 mph SSW 11 mph WSW 4 mph SW
Humidity 65% 51% 41% 55%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 13% 6% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:41 AM
7:55 PM
Source: BestForecast at 1:15 AM PDT on May 25, 2012
Descriptive Forecast
Monday
clear Clear. High of 82F. Winds from the SW at 5 to 15 mph.
Monday Night
nt_clear Clear. Low of 55F. Winds from the SW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 58 | 46 74 | 52 71 | 44 57 | 40
Wind 2 mph SW 4 mph SSW 11 mph WSW 4 mph SW
Humidity 64% 47% 36% 51%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:41 AM
7:55 PM
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 25, 2012 Max Temp Min Temp
Normal (KONT) 82 °F 54 °F
Record (KONT) 109 °F (1974) 40 °F (1980)
Yesterday 75 °F 59 °F
Yesterday's Cooling Degree Days: 2
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
Barstow, CA 80 miles 3.2 10:45 PM PDT
2012-05-23
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Good
OZONE
Current Good
OZONE
Friday Good
PM10
Friday Good
OZONE
Friday Good
CO
Friday Good
NO2
Astronomy
May. 25, 2012 Rise Set
Actual Time 5:42 AM PDT 7:53 PM PDT
Civil Twilight 5:14 AM PDT 8:21 PM PDT
Nautical Twilight 4:39 AM PDT 8:56 PM PDT
Astronomical Twilight 4:02 AM PDT 9:34 PM PDT
Moon 9:43 AM PDT 11:36 PM PDT
Length Of Visible Light 15h 07m
Length of Day
14h 10m
Tomorrow will be 1m 7s longer.
Waxing Crescent, 18% of the Moon is Illuminated
Today
Waxing Crescent
May 28
First Quarter
Jun 4
Full
Jun 11
Last Quarter
Jun 19
New
Visit Astronomy
Today's Extremes
State Highs State Lows
82 °F
Needles
75 °F
Blythe
72 °F
Palm Springs
72 °F
Thermal
71 °F
Twentynine Palms
32 °F
Truckee-Tahoe
35 °F
Weaverville
35 °F
Blue Canyon
36 °F
Alturas
36 °F
Mount Shasta
Record Extremes
Snow Depth
Station Depth Elevation
Leavitt Lake 19 in 9400 ft
Leavitt Meadows 1 in 7200 ft
Sonora Pass 0 in 8800 ft
Summit Meadow 2 in 9122 ft
Poison Flat 0 in 7900 ft
Snow Depth Reports — Snow Depth Map
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Travel Planning
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Nearby Events
Event Date Forecast
Successfully Selling HUD Homes 1:00 PM PDT 2012-05-25 Chance of Rain, 63°F
Hot Water Music and Touche Amore 7:00 PM PDT 2012-05-26 Partly Cloudy, 62°F
align | kingdom integration lab 10:00 AM PDT 2012-05-26 Partly Cloudy, 58°F
align | kingdom integration lab 2:00 PM PDT 2012-05-26 Partly Cloudy, 68°F
Pass Business, Make Money, Develop Friendships and Eat Breakfast 7:00 AM PDT 2012-05-30 Clear, 64°F
Let's Eat Pho @ Saigon Noodle House in Diamond Bar 7:00 PM PDT 2012-05-30 Clear, 68°F
Event data courtesy eviesays.com
Aviation
City Temp. Conditions Updated
La Verne This station is not reporting.
Ontario 59 °F Overcast 3:53 AM PDT
Chino 60 °F Overcast 3:53 AM PDT
Corona 60 °F Overcast 2:56 AM PDT
View all Aviation Tools
Flight To ETA Status
UPS910
Chicago/Rockford, IL 		KONT 04:32AM On Time
UPS918
 KONT 04:46AM On Time
UPS918
Louisville, KY 		KONT 04:46AM On Time
FDX1438
Memphis, TN 		KONT 04:54AM On Time
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: MVFR (KONT)
Wind Speed: 7.0 kts.
Wind Dir: 292° (WNW)
Ceiling: 1800 ft

METAR KONT 251053Z 27007KT 10SM OVC018 15/11 A2970 RMK AO2 SLP049 T01500111

View all Reports & Maps
Sports
Event Date Forecast
Royals vs. Orioles 7:05 PM EDT on May 25, 2012 Clear, 79 °F
Cubs vs. Pirates 7:05 PM EDT on May 25, 2012 Chance of a Thunderstorm, 81 °F
Astros vs. Dodgers 7:10 PM PDT on May 25, 2012 Chance of Rain, 56 °F
Astros vs. Dodgers 7:10 PM PDT on May 26, 2012 Partly Cloudy, 59 °F
Event Date Forecast
Athletic vs. Barcelona 12:00 PM CEST on May 25, 2012 Scattered Clouds, High 86° F/ 30° C
Barcelona vs. Athletic 10:00 PM CEST on May 25, 2012 Scattered Clouds, High 86° F/ 30° C
Event Date Forecast
Coca-Cola 600 6:16 PM EDT on May 27, 2012 Chance of a Thunderstorm, 81 °F
FedEx 400 benefiting Autism Speaks 1:15 PM EDT on June 03, 2012 Average High 79° F/ 26° C
Event Date Forecast
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 25, 2012 Overcast, 74 °F
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 26, 2012 Mostly Cloudy, 72 °F
View all Sports Weather
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Claremont (Eagle Grove), Claremont, CA 53.6 °F - 53 °F 98% WNW  at  7.2 mph - / hr 1256 ft 4:26 AM PDT Normal
Claremont North of Baseline, Claremont, CA 54.4 °F - 54 °F 97% NW  at  3.0 mph 0.01 in / hr 1531 ft 4:25 AM PDT Normal  
Claremont-Claraboya, Claremont, CA 55.6 °F - 55 °F 98% WNW  at  0.9 mph 0.00 in / hr 1505 ft 4:28 AM PDT Normal
RAWS CLAREMONT CA, Claremont, CA 54 °F - 53 °F 97% WSW  at  5 mph 0.00 in / hr 1645 ft 3:55 AM PDT MADIS
Geneva, Claremont, CA 58.1 °F - 53 °F 84% NW  at  0.0 mph 0.00 in / hr 1043 ft 4:02 AM PDT Normal  
La Verne (Eastside), La Verne, CA 57.8 °F - 54 °F 88% West  at  1.0 mph 0.00 in / hr 1050 ft 4:28 AM PDT Normal  
APRSWXNET Ontario CA, Montclair, CA 57 °F - 51 °F 79% West  at  2 mph 0.00 in / hr 1145 ft 3:54 AM PDT MADIS
La Verne Heights, La Verne, CA 57.0 °F - 52 °F 84% WNW  at  2.1 mph 0.01 in / hr 1467 ft 4:24 AM PDT Normal  
Looking Glass Estates, Upland, CA 54.5 °F - 52 °F 90% North  at  1.6 mph 0.00 in / hr 1774 ft 4:28 AM PDT Rapid Fire  
La Verne, CA 58.8 °F - 56 °F 89% NNW  at  0.0 mph 0.00 in / hr 1200 ft 4:28 AM PDT Rapid Fire
Pomona Historic Lincoln Park, Pomona, CA 59.3 °F - 52 °F 77% WSW  at  0.0 mph 0.00 in / hr 911 ft 4:28 AM PDT Rapid Fire  
23rd and Mountain, Upland, CA 53.6 °F - 52 °F 93% SW  at  2.0 mph 0.01 in / hr 2000 ft 4:26 AM PDT Rapid Fire
MesoWest Pomona , Pomona, CA - - - - WSW  at  5 mph 0.00 in / hr 886 ft 2:00 AM PDT MADIS
San Antonio Heights, Upland, CA 53.0 °F - 52 °F 96% West  at  3.0 mph 0.00 in / hr 2000 ft 4:28 AM PDT Rapid Fire  
MesoWest Upland , Upland, CA 55 °F - 53 °F 92% West  at  6 mph 0.00 in / hr 1243 ft 2:00 AM PDT MADIS
Enclos Corp., Pomona, CA 59.6 °F - 53 °F 78% WNW  at  4.0 mph 0.00 in / hr 806 ft 4:28 AM PDT Normal  
APRSWXNET Rancho Cucamonga CA , Upland, CA 54 °F - 53 °F 95% WSW  at  0 mph 0.00 in / hr 1959 ft 3:28 AM PDT MADIS
Arrow / Vineyard, Rancho Cucamonga, CA 57.9 °F - 51 °F 79% WSW  at  0.0 mph 0.00 in / hr 1173 ft 4:28 AM PDT Rapid Fire  
Amethyst at Manzanita, Alta Loma, CA 55.0 °F - 54 °F 96% West  at  2.0 mph 0.00 in / hr 1775 ft 4:28 AM PDT Rapid Fire  
South Glendora, Glendora, CA 58.4 °F - 56 °F 90% SW  at  0.0 mph 0.00 in / hr 750 ft 4:28 AM PDT Rapid Fire
Cullen Elementary School, Glendora, CA 55.8 °F - 54 °F 93% WNW  at  3.5 mph 0.01 in / hr 878 ft 4:28 AM PDT Rapid Fire
Historic District, Glendora, CA 60.8 °F - 41 °F 47% NNE  at  0.0 mph 0.00 in / hr 768 ft 4:28 AM PDT Rapid Fire  
Milliken/Mountain View, Rancho Cucamonga, CA 60.1 °F - 48 °F 64% WSW  at  5.0 mph 0.00 in / hr 1295 ft 4:26 AM PDT Normal  
APRSWXNET Chino Hills CA , Chino Hills, CA 59 °F - 52 °F 77% South  at  0 mph 0.00 in / hr 740 ft 4:03 AM PDT MADIS
Los Serranos Ranch, Chino Hills, CA 61.0 °F - 44 °F 54% SSW  at  3.1 mph 0.00 in / hr 840 ft 4:28 AM PDT Normal
Etiwanda Estates, Etiwanda, CA 57.0 °F - 50 °F 78% SE  at  0.0 mph 0.00 in / hr 1620 ft 4:28 AM PDT Rapid Fire
Alterra, Chino Hills, CA 58.5 °F - 50 °F 74% SW  at  0.0 mph 0.00 in / hr 780 ft 4:28 AM PDT Rapid Fire
Mountain Cove Azusa Real Estate, By Dolf in AZUSA, CA 56.9 °F - 54 °F 91% WSW  at  0.0 mph 0.02 in / hr 841 ft 4:28 AM PDT Rapid Fire
Hilltop in Carbon Canyon, Chino Hills, CA 57.0 °F - 51 °F 80% West  at  0.0 mph 0.00 in / hr 1166 ft 4:25 AM PDT Normal  
Carbon Canyon Hilltop, Chino Hills, CA 57.2 °F - 52 °F 84% SW  at  5.4 mph 0.00 in / hr 1243 ft 4:28 AM PDT Rapid Fire  
MesoWest Azusa , Azusa, CA 59 °F - 58 °F 96% SW  at  3 mph 0.00 in / hr 597 ft 2:00 AM PDT MADIS
Nick's Weather Station, Covina, CA 59.6 °F - 54 °F 82% South  at  0.0 mph 0.00 in / hr 436 ft 4:28 AM PDT Rapid Fire  
MesoWest Glendora-Laurel , Glendora, CA 57 °F - 57 °F 100% SW  at  2 mph 0.00 in / hr 275 ft 2:00 AM PDT MADIS
RAWS TANBARK CA, La Verne, CA 50 °F 49 °F 50 °F 100% SSW  at  4 mph 0.00 in / hr 2600 ft 3:01 AM PDT MADIS
MesoWest Johnstone Peak , Glendora, CA 50 °F 48 °F 49 °F 97% SSW  at  6 mph 0.00 in / hr 2815 ft 3:59 AM PDT MADIS
Mt Baldy, Mt Baldy, CA 48.5 °F 48 °F 46 °F 90% SW  at  0.0 mph - / hr 4100 ft 3:59 AM PDT Normal
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