Rancho Cucamonga, CA

12:21 PM PDT on May 26, 2012 (GMT -0700)
Elev: 1932 ft
Lon: 117.6° W
Lat: 34.2° N
Source
Rapid Fire Updates™
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Tropical Weather: Subtropical Storm Beryl (North Atlantic) Post-Tropical Cyclone Bud (East Pacific) Typhoon Sanvu (Western Pacific)
Weather Summary
Kari Kiefer
Weather Underground Forecast for Saturday, May 26, 2012.

Subtropical Storm Beryl formed late Friday off the Carolina Coast and is expected to move slowly southwestward over the weekend. The storm may maintain tropical storm strength as it approaches the northeast coast of Florida later Sunday night. The storm itself may dump a significant amount of rain on this part of Florida and adjacent areas of Georgia, potentially good news to an area that is currently in an exceptional drought.

The main weather feature over the nation will be a low pressure system moving off the Rockies and into the Plains on Saturday. Flow around this system continues pushing a warm front eastward, over the Plains and through the Midwest. Expect widespread showers and thunderstorms to develop along this frontal boundary, from the Northern and Central Plains through the Great Lakes. Some of these storms will turn severe with strong winds, large hail, and heavy rainfall. Severe thunderstorms are most likely over Minnesota, Wisconsin, and Iowa. By Saturday evening, the tail end of this system will reach the Northeast, bringing lighter and more widespread showers and thunderstorms to the region.

The back side of this broad low pressure system will continue pulling cool air in from Canada. This will allow for rain showers to turn to snow showers at the highest elevations of the Northern Rockies, Intermountain West, and Central Rockies. At the same time, strong and gusty winds will persist for the southern side of this system. In combination with warm and dry conditions, this will maintain high fire danger for the Southwest and Southern Rockies.
Weather Underground Forecast for Saturday, May 26, 2012.

Subtropical Storm Beryl formed late Friday off the Carolina Coast and is expected to move slowly southwestward over the weekend. The storm may maintain tropical storm strength as it approaches the northeast coast of Florida later Sunday night. The storm itself may dump a significant amount of rain on this part of Florida and adjacent areas of Georgia, potentially good news to an area that is currently in an exceptional drought.

The main weather feature over the nation will be a low pressure system moving off the Rockies and into the Plains on Saturday. Flow around this system continues pushing a warm front eastward, over the Plains and through the Midwest. Expect widespread showers and thunderstorms to develop along this frontal boundary, from the Northern and Central Plains through the Great Lakes. Some of these storms will turn severe with strong winds, large hail, and heavy rainfall. Severe thunderstorms are most likely over Minnesota, Wisconsin, and Iowa. By Saturday evening, the tail end of this system will reach the Northeast, bringing lighter and more widespread showers and thunderstorms to the region.

The back side of this broad low pressure system will continue pulling cool air in from Canada. This will allow for rain showers to turn to snow showers at the highest elevations of the Northern Rockies, Intermountain West, and Central Rockies. At the same time, strong and gusty winds will persist for the southern side of this system. In combination with warm and dry conditions, this will maintain high fire danger for the Southwest and Southern Rockies.
Weather Underground Broadcast Network

Rancho Cucamonga Weather at a Glance

Updated 11:53 AM PDT
Weather Station
Riverside (KRAL)
Elevation
817 ft
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Now
Mostly Cloudy
Mostly Cloudy
Temperature
64 °F
Feels Like 64 °F
Wind(mph)
0
Sunrise / Set
5:41 AM
7:53 PM
Moon
Waxing Crescent
Today
Partly Cloudy 70 °F
Partly Cloudy
Tonight
Partly Cloudy 50 °F
Partly Cloudy
Tomorrow
Partly Cloudy 79 | 55 °F
Partly Cloudy
Monday
Partly Cloudy 86 | 52 °F
Partly Cloudy
Tuesday
Partly Cloudy 82 | 54 °F
Partly Cloudy
Wednesday
Partly Cloudy 84 | 57 °F
Partly Cloudy
Today is forecast to be nearly the same temperature as yesterday.
Conditions
Pressure
29.97 in
Visibility
10.0 miles
Clouds
Scattered Clouds 4800 ft
Mostly Cloudy 7000 ft
Moisture
Humidity
38%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KRAL 261853Z 00000KT 10SM SCT048 BKN070 18/03 A3000 RMK AO2 SLP147 T01780033
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
64 °F
Dew Point
38 °F
Wind
Speed / Dir
Calm
Wind Gust
Health
UV
6 out of 16
Pollen
4.40 out of 12
Pollen Forecast
Ozone
Good
Flu Activity
Local Activity
View Flu Map
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Source: BestForecast
Descriptive Forecast
Saturday
partlycloudy Partly cloudy. High of 70F. Winds from the SW at 5 to 15 mph.
Saturday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 50F. Winds from the SSW at 5 to 10 mph.
Sunday
partlycloudy Partly cloudy in the morning, then clear. High of 79F. Winds from the West at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 55F. Winds from the South at 5 to 10 mph.
Monday
partlycloudy Partly cloudy in the morning, then clear. High of 86F. Winds from the WSW at 5 to 15 mph.
Monday Night
nt_clear Clear in the evening, then partly cloudy. Low of 52F. Winds less than 5 mph.
Tuesday
partlycloudy Partly cloudy in the morning, then clear. High of 82F. Winds from the SSW at 5 to 15 mph.
Tuesday Night
nt_clear Clear in the evening, then partly cloudy. Low of 54F. Winds less than 5 mph.
Wednesday
partlycloudy Partly cloudy in the morning, then clear. High of 84F. Winds from the WSW at 5 to 15 mph.
Wednesday Night
nt_clear Partly cloudy. Low of 57F. Winds less than 5 mph.
Thursday
partlycloudy Partly cloudy. High of 91F. Winds from the WSW at 5 to 15 mph.
Thursday Night
nt_clear Partly cloudy. Low of 61F. Winds less than 5 mph.
Friday
partlycloudy Partly cloudy. High of 88F. Winds from the WSW at 5 to 15 mph.
Friday Night
nt_partlycloudy Partly cloudy. Low of 59F. Winds less than 5 mph.
Saturday
partlycloudy Partly cloudy. High of 84F. Winds from the SW at 5 to 15 mph.
Saturday Night
nt_clear Partly cloudy. Low of 57F. Winds less than 5 mph.
Sunday
partlycloudy Partly cloudy. High of 86F. Winds from the SW at 5 to 10 mph.
Sunday Night
nt_clear Partly cloudy. Low of 55F. Winds less than 5 mph.
Monday
partlycloudy Clear. High of 86F. Winds from the SW at 5 to 10 mph.
Monday Night
nt_clear Partly cloudy. Low of 55F. Winds less than 5 mph.
Tuesday
partlycloudy Partly cloudy. High of 86F. Winds from the SW at 5 to 10 mph.
Tuesday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
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Forecast

View Calendar 10-Day Forecast for station KRAL

Saturday, 26
Partly Cloudy
70 | 50 °F
Partly Cloudy
Chance of
Precipitation
0%
Sunday, 27
Partly Cloudy
79 | 55 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 28
Partly Cloudy
86 | 52 °F
Partly Cloudy
Chance of
Precipitation
0%
Tuesday, 29
Partly Cloudy
82 | 54 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 30
Partly Cloudy
84 | 57 °F
Partly Cloudy
Chance of
Precipitation
0%
Thursday, 31
Partly Cloudy
91 | 61 °F
Partly Cloudy
Chance of
Precipitation
0%
Friday, 1
Partly Cloudy
88 | 59 °F
Partly Cloudy
Chance of
Precipitation
0%
Saturday, 2
Partly Cloudy
84 | 57 °F
Partly Cloudy
Chance of
Precipitation
0%
Sunday, 3
Partly Cloudy
86 | 55 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 4
Partly Cloudy
86 | 55 °F
Partly Cloudy
Chance of
Precipitation
0%
Source: BestForecast at 6:43 AM PDT on May 26, 2012
Descriptive Forecast
Saturday
partlycloudy Partly cloudy. High of 70F. Winds from the SW at 5 to 15 mph.
Saturday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 50F. Winds from the SSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 48 | 48 58 | 43 62 | 45 53 | 45
Wind 5 mph South 6 mph West 10 mph WSW 2 mph NW
Humidity 94% 56% 55% 74%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 45% 52% 22% 42%
Conditions Partly Cloudy Partly Cloudy Clear Partly Cloudy
Sunrise & Sunset
5:41 AM
7:53 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.84], Average RMSE [1.39]
The National Weather Service forecast quality is good. MaxT RMSE [1.81], Average RMSE [1.69] : Use NWS
Source: BestForecast at 6:43 AM PDT on May 26, 2012
Descriptive Forecast
Sunday
partlycloudy Partly cloudy in the morning, then clear. High of 79F. Winds from the West at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 55F. Winds from the South at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 49 68 | 47 73 | 47 62 | 51
Wind 3 mph ESE 4 mph WNW 11 mph West 4 mph SE
Humidity 87% 50% 40% 66%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 52% 39% 8% 5%
Conditions Fog Partly Cloudy Clear Clear
Sunrise & Sunset
5:41 AM
7:54 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.40], Average RMSE [1.33]
The National Weather Service forecast quality is good. MaxT RMSE [2.31], Average RMSE [2.05] : Use NWS
Source: BestForecast at 6:43 AM PDT on May 26, 2012
Descriptive Forecast
Monday
partlycloudy Partly cloudy in the morning, then clear. High of 86F. Winds from the WSW at 5 to 15 mph.
Monday Night
nt_clear Clear in the evening, then partly cloudy. Low of 52F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 57 | 46 75 | 48 77 | 50 61 | 46
Wind 1 mph SSE 7 mph West 9 mph West 2 mph ESE
Humidity 69% 38% 40% 59%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 9% 53% 4% 8%
Conditions Clear Partly Cloudy Clear Clear
Sunrise & Sunset
5:40 AM
7:54 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.84], Average RMSE [1.88]
The National Weather Service forecast quality is fair. MaxT RMSE [2.92], Average RMSE [2.27] : Use NWS
Source: BestForecast at 6:43 AM PDT on May 26, 2012
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy in the morning, then clear. High of 82F. Winds from the SSW at 5 to 15 mph.
Tuesday Night
nt_clear Clear in the evening, then partly cloudy. Low of 54F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 57 | 48 76 | 53 73 | 47 59 | 51
Wind 1 mph ESE 9 mph SW 9 mph SW 1 mph ESE
Humidity 72% 44% 40% 76%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 53% 53% 1% 7%
Conditions Partly Cloudy Partly Cloudy Clear Clear
Sunrise & Sunset
5:40 AM
7:55 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.73], Average RMSE [2.12]
The National Weather Service forecast quality is poor. MaxT RMSE [3.78], Average RMSE [2.33] : Use NWS
Source: BestForecast at 6:43 AM PDT on May 26, 2012
Descriptive Forecast
Wednesday
partlycloudy Partly cloudy in the morning, then clear. High of 84F. Winds from the WSW at 5 to 15 mph.
Wednesday Night
nt_clear Partly cloudy. Low of 57F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 51 76 | 55 78 | 48 64 | 56
Wind 2 mph NNW 9 mph SW 9 mph SW 1 mph NNW
Humidity 83% 48% 36% 76%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 39% 49% 2% 7%
Conditions Partly Cloudy Partly Cloudy Clear Clear
Sunrise & Sunset
5:40 AM
7:56 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.79], Average RMSE [2.21]
The National Weather Service forecast quality is poor. MaxT RMSE [4.39], Average RMSE [2.32] : Use NWS
Source: BestForecast at 6:43 AM PDT on May 26, 2012
Descriptive Forecast
Thursday
partlycloudy Partly cloudy. High of 91F. Winds from the WSW at 5 to 15 mph.
Thursday Night
nt_clear Partly cloudy. Low of 61F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 61 | 53 80 | 58 84 | 63 64 | 56
Wind 2 mph NW 10 mph SW 9 mph SW 1 mph SSE
Humidity 75% 47% 48% 75%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 40% 53% 1% 10%
Conditions Partly Cloudy Partly Cloudy Clear Clear
Sunrise & Sunset
5:40 AM
7:56 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.32], Average RMSE [2.07]
The National Weather Service forecast quality is poor. MaxT RMSE [5.05], Average RMSE [2.24] : Use NWS
Source: BestForecast at 6:43 AM PDT on May 26, 2012
Descriptive Forecast
Friday
partlycloudy Partly cloudy. High of 88F. Winds from the WSW at 5 to 15 mph.
Friday Night
nt_partlycloudy Partly cloudy. Low of 59F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 61 | 58 77 | 58 80 | 57 63 | 57
Wind 1 mph WNW 10 mph SW 10 mph SW 2 mph South
Humidity 90% 54% 45% 82%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 43% 49% 3% 10%
Conditions Partly Cloudy Partly Cloudy Clear Clear
Sunrise & Sunset
5:40 AM
7:56 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.57], Average RMSE [2.04]
Source: BestForecast at 6:43 AM PDT on May 26, 2012
Descriptive Forecast
Saturday
partlycloudy Partly cloudy. High of 84F. Winds from the SW at 5 to 15 mph.
Saturday Night
nt_clear Partly cloudy. Low of 57F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 58 78 | 61 76 | 59 62 | 59
Wind 2 mph South 9 mph SW 9 mph SW 4 mph SW
Humidity 88% 54% 54% 91%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 46% 52% 3% 10%
Conditions Partly Cloudy Partly Cloudy Clear Clear
Sunrise & Sunset
5:40 AM
7:56 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.09], Average RMSE [1.84]
Source: BestForecast at 6:43 AM PDT on May 26, 2012
Descriptive Forecast
Sunday
partlycloudy Partly cloudy. High of 86F. Winds from the SW at 5 to 10 mph.
Sunday Night
nt_clear Partly cloudy. Low of 55F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 59 70 | 54 77 | 59 60 | 53
Wind 3 mph SW 6 mph SSW 9 mph WSW 4 mph SW
Humidity 96% 55% 53% 79%
Chance of Precip. 10% 0% 0% 10%
Cloud Cover 59% 56% 4% 16%
Conditions Partly Cloudy Partly Cloudy Clear Clear
Sunrise & Sunset
5:40 AM
7:56 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.30], Average RMSE [1.98]
Source: BestForecast at 6:43 AM PDT on May 26, 2012
Descriptive Forecast
Monday
partlycloudy Clear. High of 86F. Winds from the SW at 5 to 10 mph.
Monday Night
nt_clear Partly cloudy. Low of 55F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 50 74 | 59 79 | 59 61 | 47
Wind 2 mph SW 5 mph SSW 9 mph WSW 4 mph SW
Humidity 73% 59% 50% 62%
Chance of Precip. 10% 0% 0% 10%
Cloud Cover 27% 15% 4% 16%
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
5:40 AM
7:56 PM
Source: BestForecast at 6:43 AM PDT on May 26, 2012
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy. High of 86F. Winds from the SW at 5 to 10 mph.
Tuesday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 50 75 | 59 80 | 59 62 | 47
Wind 2 mph WSW 4 mph SSW 9 mph WSW 3 mph SW
Humidity 71% 56% 46% 57%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 28% 17% 6% %
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
5:40 AM
7:56 PM
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
Active Notice: Record Report  (US Severe Weather)
History & Almanac
May 26, 2012 Max Temp Min Temp
Normal (KONT) 82 °F 55 °F
Record (KONT) 101 °F (1974) 39 °F (1980)
Yesterday 71 °F 53 °F
Yesterday's Heating Degree Days: 3
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
Calexico, CA 153 miles 2.5 11:58 PM PDT
2012-05-24
Barstow, CA 73 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
Sunday Good
OZONE
Sunday Good
PM10
Sunday Good
CO
Sunday Good
NO2
Astronomy
May. 26, 2012 Rise Set
Actual Time 5:41 AM PDT 7:53 PM PDT
Civil Twilight 5:13 AM PDT 8:22 PM PDT
Nautical Twilight 4:38 AM PDT 8:56 PM PDT
Astronomical Twilight 4:00 AM PDT 9:34 PM PDT
Moon 10:41 AM PDT No Moon Set
Length Of Visible Light 15h 08m
Length of Day
14h 11m
Tomorrow will be 1m 5s longer.
Waxing Crescent, 29% 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
73 °F
El Centro
73 °F
Thermal
73 °F
Imperial
71 °F
Palm Springs
70 °F
Needles
28 °F
Big Bear City
32 °F
South Lake Tahoe
32 °F
Truckee-Tahoe
35 °F
Blue Canyon
35 °F
Sandberg
Record Extremes
Snow Depth
Station Depth Elevation
Leavitt Lake 16 in 9400 ft
Leavitt Meadows 1 in 7200 ft
Sonora Pass 1 in 8800 ft
Lobdell Lake 0 in 9200 ft
Summit Meadow 0 in 9122 ft
Snow Depth Reports — Snow Depth Map
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Travel Planning
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Nearby Events
Event Date Forecast
Hot Water Music and Touche Amore 7:00 PM PDT 2012-05-26 Mostly Cloudy, 62°F
align | kingdom integration lab 10:00 AM PDT 2012-05-26 Partly Cloudy, 53°F
align | kingdom integration lab 2:00 PM PDT 2012-05-26 Mostly Cloudy, 63°F
Ontario Warriors Indoor Football: Ontario vs. Las Vegas 7:00 PM PDT 2012-05-28 Clear, 72°F
Pass Business, Make Money, Develop Friendships and Eat Breakfast 7:00 AM PDT 2012-05-30 Partly Cloudy, 58°F
Inland Cities West Monthly Business Mixer 6:00 PM PDT 2012-05-30 Clear, 77°F
Event data courtesy eviesays.com
Aviation
City Temp. Conditions Updated
Ontario 62 °F Mostly Cloudy 11:53 AM PDT
La Verne - Mostly Cloudy 11:47 AM PDT
Chino 67 °F Mostly Cloudy 11:53 AM PDT
Riverside 64 °F Mostly Cloudy 11:53 AM PDT
View all Aviation Tools
Flight To ETA Status
SKW4760
Salt Lake City, UT 		KONT 12:21PM On Time
SWA3379
Phoenix, AZ 		KONT 12:42PM On Time
UAL315
Denver, CO 		KONT 01:54PM On Time
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: VFR (KRAL)
Wind Speed: 0.0 kts.
Wind Dir: N/A
Ceiling: 7000 ft

METAR KRAL 261853Z 00000KT 10SM SCT048 BKN070 18/03 A3000 RMK AO2 SLP147 T01780033

View all Reports & Maps
Sports
Event Date Forecast
Padres vs. Mets 1:10 PM EDT on May 26, 2012 Chance of a Thunderstorm, 83 °F
Tigers vs. Twins 6:10 PM UTC on May 26, 2012 Chance of a Thunderstorm, 67 °F
Event Date Forecast
Sheffield United vs. Huddersfield Town 3:00 PM BST on May 26, 2012 Clear, High 71° F/ 22° C
Verona vs. Modena 12:00 PM EDT on May 26, 2012 Forecast not available.
Event Date Forecast
Auto Club 400 12:16 PM PDT on March 25, 2012 Rain, 52 °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 26, 2012 Mostly Cloudy, 72 °F
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 27, 2012 Mostly Cloudy, 70 °F
View all Sports Weather
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Amethyst at Manzanita, Alta Loma, CA 58.6 °F - 44 °F 59% West  at  6.0 mph 0.00 in / hr 1775 ft 12:21 PM PDT Rapid Fire  
I-210 at Archibald Ave, Rancho Cucamonga, CA 58.3 °F - 42 °F 55% NW  at  0.0 mph 0.00 in / hr 1555 ft 12:00 PM PDT Normal  
APRSWXNET Rancho Cucamonga CA , Upland, CA 56 °F - 46 °F 68% SSW  at  1 mph 0.00 in / hr 1959 ft 11:48 AM PDT MADIS
Milliken/Mountain View, Rancho Cucamonga, CA 61.9 °F - 34 °F 35% SSW  at  4.0 mph 0.00 in / hr 1295 ft 12:11 PM PDT Normal  
Etiwanda Estates, Etiwanda, CA 59.0 °F - 44 °F 58% SE  at  0.0 mph 0.00 in / hr 1620 ft 12:20 PM PDT Normal
San Antonio Heights, Upland, CA 55.1 °F - 46 °F 70% WSW  at  2.0 mph 0.00 in / hr 2000 ft 12:21 PM PDT Rapid Fire  
MesoWest Upland , Upland, CA 56 °F - 44 °F 64% SSE  at  5 mph 0.00 in / hr 1243 ft 11:00 AM PDT MADIS
Arrow / Vineyard, Rancho Cucamonga, CA 60.8 °F - 39 °F 44% WNW  at  2.0 mph 0.00 in / hr 1173 ft 12:20 PM PDT Rapid Fire  
23rd and Mountain, Upland, CA 58.3 °F - 44 °F 60% SSW  at  1.0 mph 0.00 in / hr 2000 ft 12:18 PM PDT Rapid Fire
Looking Glass Estates, Upland, CA 57.6 °F - 39 °F 50% North  at  2.3 mph 0.00 in / hr 1774 ft 12:21 PM PDT Rapid Fire  
210/15 fwys, Rancho Cucamonga, CA 57.7 °F - 45 °F 62% North  at  0.0 mph 0.00 in / hr 1450 ft 12:21 PM PDT Rapid Fire  
RAWS CLAREMONT CA, Claremont, CA 59 °F - 45 °F 59% SSW  at  6 mph 0.00 in / hr 1645 ft 10:55 AM PDT MADIS
The Villiages, Fontana, CA 59.7 °F - - - NNW  at  5.0 mph 0.00 in / hr 1309 ft 12:20 PM PDT Normal  
Claremont North of Baseline, Claremont, CA 59.2 °F - 46 °F 62% WSW  at  3.0 mph 0.00 in / hr 1531 ft 12:20 PM PDT Normal  
APRSWXNET Ontario CA, Montclair, CA 62 °F - 42 °F 47% SW  at  2 mph 0.00 in / hr 1145 ft 11:42 AM PDT MADIS
Claremont (Eagle Grove), Claremont, CA 59.0 °F - 46 °F 63% South  at  7.8 mph - / hr 1256 ft 12:17 PM PDT Normal
Citrus Heights, Fontana, CA 60.4 °F - 24 °F 24% WSW  at  0.0 mph 0.00 in / hr 1550 ft 12:20 PM PDT Normal  
Werner Ent. Fontana, Fontana, CA 64.5 °F - 43 °F 45% WSW  at  5.0 mph 0.00 in / hr 1012 ft 12:20 PM PDT Rapid Fire  
Claremont-Claraboya, Claremont, CA 61.0 °F - 41 °F 47% South  at  5.6 mph 0.00 in / hr 1505 ft 12:20 PM PDT Normal
RAWS LYTLE CREEK CA, Lytle Creek, CA 50 °F - 40 °F 69% SSE  at  3 mph 0.00 in / hr 2791 ft 11:05 AM PDT MADIS
Southwest Fontana, Fontana, CA 64.2 °F - 38 °F 38% West  at  7.0 mph 0.00 in / hr 994 ft 12:21 PM PDT Rapid Fire  
APRSWXNET Claremont CA , Claremont, CA 62 °F - 42 °F 48% NNE  at  1 mph 0.00 in / hr 984 ft 11:41 AM PDT MADIS
Geneva, Claremont, CA 61.7 °F - 46 °F 56% SE  at  2.0 mph 0.00 in / hr 1043 ft 12:02 PM PDT Normal  
La Verne Heights, La Verne, CA 65.1 °F - 41 °F 41% SSW  at  5.3 mph 0.00 in / hr 1467 ft 12:20 PM PDT Normal  
RAWS TANBARK CA, La Verne, CA 54 °F - 45 °F 71% South  at  5 mph 0.00 in / hr 2600 ft 11:01 AM PDT MADIS
La Verne (Eastside), La Verne, CA 61.1 °F - 46 °F 58% SSE  at  2.0 mph 0.00 in / hr 1050 ft 12:20 PM PDT Normal  
La Verne, CA 63.1 °F - 36 °F 36% South  at  5.8 mph 0.00 in / hr 1200 ft 12:20 PM PDT Rapid Fire
rialto airport, Rialto, CA 58.4 °F - 41 °F 53% West  at  2.0 mph 0.00 in / hr 1465 ft 12:20 PM PDT Rapid Fire  
RAWS DEVORE CA, San Bernardino, CA 53 °F - 45 °F 73% East  at  4 mph 0.00 in / hr 2081 ft 11:10 AM PDT MADIS
MesoWest Johnstone Peak , Glendora, CA 51 °F - 40 °F 67% SSW  at  21 mph 0.00 in / hr 2815 ft 11:43 AM PDT MADIS
Cat Crossing Ink, Rialto, CA 64.0 °F - 40 °F 42% WSW  at  6.2 mph 0.00 in / hr 1125 ft 12:21 PM PDT Rapid Fire
MesoWest Fontana-Arrow Highway , Fontana, CA 57 °F - 42 °F 57% WSW  at  4 mph 0.00 in / hr 928 ft 11:00 AM PDT MADIS
Pomona Historic Lincoln Park, Pomona, CA 62.2 °F - 45 °F 54% SW  at  0.0 mph 0.00 in / hr 911 ft 12:21 PM PDT Rapid Fire  
MesoWest Pomona , Pomona, CA - - - - WSW  at  6 mph 0.00 in / hr 886 ft 11:00 AM PDT MADIS
Enclos Corp., Pomona, CA 61.6 °F - 45 °F 54% WNW  at  3.0 mph 0.00 in / hr 806 ft 12:21 PM PDT Normal  
MesoWest Mira Loma Van Buren , Mira Loma, CA 65 °F - 46 °F 51% SSE  at  4 mph 0.00 in / hr 757 ft 11:00 AM PDT MADIS
Weather in, Eastvale, CA 70.6 °F - 47 °F 43% SW  at  2.0 mph 0.00 in / hr 643 ft 12:21 PM PDT Rapid Fire  
RAWS MORMON ROCK CA, Lytle Creek, CA 54 °F - 40 °F 60% ESE  at  9 mph 0.00 in / hr 3299 ft 11:23 AM PDT MADIS
HADS MIDDLE FORK LYTLE CK PRECIP SITE CA, Lytle Creek, CA - - - - North  at  - 0.00 in / hr 3740 ft 10:45 AM PDT MADIS
Mt Baldy, Mt Baldy, CA 45.1 °F 45 °F 37 °F 74% West  at  0.0 mph - / hr 4100 ft 12:18 PM PDT Normal
HADS RIDGE TOP PRECIPITATION GAGE NEA CA, Cedarpines Park, CA - - - - North  at  - 0.01 in / hr 5149 ft 10:45 AM PDT MADIS
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Record Report
Mobile & Email Alerts Statement as of 5:40 PM PDT on May 25, 2012

... Lowest maximum temperature records broken or tied on may 25...

Location new record old record period of record

El Cajon 64 tied 64 in 1987 since 1979
Escondido 62 63 in 1995 since 1979
Vista 63 66 in 2008 since 1957


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