Castro Valley, CA

3:57 AM PDT on May 18, 2013 (GMT -0700)
Elev: 233 ft
Lon: 122.1° W
Lat: 37.7° N
Source
Rapid Fire Updates™
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News
May 17, 2013
Indonesian-born and Qatar-based photographer Helminadia Ranford captured breathtaking photos of Mt. Bromo, an active volcano in East Java, Indonesia.
May 17, 2013
A spacewalk has repaired a leak on the International Space Station, NASA said.
May 17, 2013
Spring warmth has arrived in most of the U.S., except this state.
May 16, 2013
Storm storms leave damage near Shreveport, Louisiana. See photos and tweets.
May 17, 2013
We walk through the full timeline of the Texas tornadoes on May 15, 2013.
May 16, 2013
Where Earth has been changed forever.
May 16, 2013
Thousands of small glaciers, unconnected to continental-scale ice sheets, have dumped about 260 million tons of meltwater into the ocean annually between 2003 and 2009.
May 16, 2013
After months with record-low activity, the 2013 tornado season roared back with a vengeance on Wednesday as at least 10 twisters touched down across portions of north-central Texas, killing at least 6 and injuring dozens more.
May 16, 2013
Seismic activity is continuing at the Popocatepetl volcano near Mexico City and authorities say they have readied shelters and identified evacuation routes in case they should be needed.
May 16, 2013
Cyclone Mahasan weakened Thursday afternoon into a tropical storm and then dissipated, causing far less damage than had been feared as it passed over Bangladesh and spared Myanmar almost entirely, meteorological officials said.
May 17, 2013
The Ocean Conservancy releases stunning photos from its recent international beach cleanup day.
May 17, 2013
Finding the oldest water on Earth has implications for understanding life on Earth and maybe Mars.
May 17, 2013
Deadly storms ripped across north-central Texas on Wednesday, leaving a wide trail of destruction.
May 16, 2013
The scientific agreement that climate change is happening, and that it's caused by human activity, is significant and growing, according to a new study published Thursday.
May 16, 2013
Severe weather broke out in northeastern Texas, including the Dallas Fort Worth area. Below are reports of hail and tornadoes from throughout social media.
May 15, 2013
NASA's planet-hunting Kepler telescope is broken, possibly jeopardizing searches for life outside the Milky Way.
May 15, 2013
April 2013 was colder and wetter than average.
May 15, 2013
The collection above features over 100 breathtaking images of Earth taken from NASA satellites and the International Space Station at night. But to scientists and meteorologists, they are more than just pretty pictures.
May 15, 2013
In Alaska, climate change is forcing villagers on the edge of the Arctic to confront the reality of a warming planet. If they don't act soon, their villages were be lost forever.
May 17, 2013
The cause of a large wildfire in Wisconsin has been solved.
Weather Summary
Weather Underground Forecast for Saturday, May 18, 2013.

A strong low pressure system will bring active weather to the center of the nation on Saturday. The system will move off the Rockies and into the Plains, which will push a warm front into the Northern Plains and Upper Midwest, while it continues pulling a cold front southeastward across the Western states. Counter clockwise flow around this system will pull more moisture and energy into the Plains from the Gulf of Mexico, allowing for showers and thunderstorms to develop from Oklahoma through the Dakotas and into Minnesota. These areas are under a slight threat of severe weather development with strong winds, large hail, and heavy rainfall. Parts of western Nebraska and northwestern Kansas are under a moderate risk of severe thunderstorm development. This area has increased risk for tornado development on Saturday.

East of this activity, a weak trough slowly moves over the Eastern Valleys, allowing for a few more widespread showers and thunderstorms to pop up from the Southern Appalachians through the Mid-Atlantic states. Meanwhile in the West, moisture from the Pacific Ocean will allow for scattered showers with afternoon thunderstorms to persist for the Northern and Central Rockies. Severe storms are not likely in these areas. In the Southwest, gusty winds, warm temperatures, and dry conditions will maintain dangerous fire weather conditions on Saturday.
Weather Underground Forecast for Saturday, May 18, 2013.

A strong low pressure system will bring active weather to the center of the nation on Saturday. The system will move off the Rockies and into the Plains, which will push a warm front into the Northern Plains and Upper Midwest, while it continues pulling a cold front southeastward across the Western states. Counter clockwise flow around this system will pull more moisture and energy into the Plains from the Gulf of Mexico, allowing for showers and thunderstorms to develop from Oklahoma through the Dakotas and into Minnesota. These areas are under a slight threat of severe weather development with strong winds, large hail, and heavy rainfall. Parts of western Nebraska and northwestern Kansas are under a moderate risk of severe thunderstorm development. This area has increased risk for tornado development on Saturday.

East of this activity, a weak trough slowly moves over the Eastern Valleys, allowing for a few more widespread showers and thunderstorms to pop up from the Southern Appalachians through the Mid-Atlantic states. Meanwhile in the West, moisture from the Pacific Ocean will allow for scattered showers with afternoon thunderstorms to persist for the Northern and Central Rockies. Severe storms are not likely in these areas. In the Southwest, gusty winds, warm temperatures, and dry conditions will maintain dangerous fire weather conditions on Saturday.

Castro Valley Weather at a Glance

Updated 3:53 AM PDT
Elevation
0 ft
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Now
Overcast
Overcast
Temperature
51.4 °F
Feels Like 51.4 °F
Wind(mph)
1.6
Sunrise / Set
5:55 AM
8:14 PM
Moon
First Quarter
Tonight
Partly Cloudy 45 °F
Partly Cloudy
Saturday
Partly Cloudy 72 °F
Partly Cloudy
Saturday Night
Clear 52 °F
Clear
Sunday
Partly Cloudy 81 | 55 °F
Partly Cloudy
Monday
Clear 84 | 52 °F
Clear
Tuesday
Partly Cloudy 70 | 48 °F
Partly Cloudy
Today is forecast to be Warmer than yesterday.
Conditions
Pressure
30.13 in
Visibility
10.0 miles
Clouds
Overcast 1700 ft
Moisture
Humidity
81%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KHWD 180954Z AUTO 25006KT 10SM OVC017 13/09 A3010 RMK AO2 SLP201 T01280089
Don't speak METAR? Read our FAQ.
Weather Radio
Temperature
Temperature
51.4 °F
63,64,64,62,61,60,57,56,56,55,55,55,55
Dew Point
46 °F
Wind
Speed / Dir
1.6 mph from West
Wind Gust
2.9 mph
Health
0 out of 16
Pollen
5.60 out of 12
Pollen Forecast
PM2.5
Good
Flu Activity
Sporadic
View Flu Map
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Source: BestForecast
Descriptive Forecast
Saturday
partlycloudy Mostly cloudy in the morning, then clear. High of 72F. Winds from the WSW at 5 to 15 mph.
Saturday Night
nt_clear Clear in the evening, then partly cloudy. Low of 52F. Winds less than 5 mph.
Sunday
partlycloudy Partly cloudy in the morning, then clear. High of 81F. Winds from the West at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 55F. Winds from the SW at 5 to 10 mph shifting to the WNW after midnight.
Monday
clear Clear. High of 84F. Winds from the NNW at 5 to 15 mph.
Monday Night
nt_mostlycloudy Overcast. Low of 52F. Winds from the WSW at 5 to 10 mph.
Tuesday
partlycloudy Partly cloudy in the morning, then clear. High of 70F. Winds from the WSW at 5 to 15 mph.
Tuesday Night
nt_clear Clear. Low of 48F. Winds from the West at 5 to 15 mph.
Wednesday
clear Clear. High of 70F. Winds from the NW at 10 to 15 mph.
Wednesday Night
nt_clear Clear. Low of 48F. Winds from the WNW at 5 to 10 mph.
Thursday
clear Clear. High of 70F. Winds from the WNW at 5 to 15 mph.
Thursday Night
nt_clear Clear. Low of 48F. Winds from the WSW at 5 to 10 mph.
Friday
clear Clear. High of 68F. Winds from the WSW at 5 to 15 mph.
Friday Night
nt_clear Clear. Low of 48F. Winds from the WSW at 5 to 10 mph.
Saturday
clear Clear. High of 64F. Winds from the WSW at 5 to 15 mph.
Saturday Night
nt_clear Clear. Low of 48F. Winds from the WNW at 5 to 15 mph.
Sunday
clear Clear. High of 73F. Winds from the WNW at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 48F. Winds from the West at 5 to 15 mph.
Monday
clear Clear. High of 75F. Winds from the WNW at 5 to 15 mph.
Monday Night
nt_clear Clear. Low of 50F. Winds from the West at 5 to 15 mph.
Tuesday
clear Clear. High of 77F. Winds from the West at 5 to 15 mph.
Tuesday Night
nt_clear Clear. Low of 50F. Winds from the West at 5 to 15 mph.
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Weather Forecast for Castro Valley CA

View Calendar 10-Day Forecast for station KCACASTR7

Saturday, 18
Partly Cloudy
72 | 52 °F
Partly Cloudy
Chance of
Precipitation
0%
Sunday, 19
Partly Cloudy
81 | 55 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 20
Clear
84 | 52 °F
Clear
Chance of
Precipitation
0%
Tuesday, 21
Partly Cloudy
70 | 48 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 22
Clear
70 | 48 °F
Clear
Chance of
Precipitation
0%
Thursday, 23
Clear
70 | 48 °F
Clear
Chance of
Precipitation
0%
Friday, 24
Clear
68 | 48 °F
Clear
Chance of
Precipitation
0%
Saturday, 25
Clear
64 | 48 °F
Clear
Chance of
Precipitation
0%
Sunday, 26
Clear
73 | 48 °F
Clear
Chance of
Precipitation
0%
Monday, 27
Clear
75 | 50 °F
Clear
Chance of
Precipitation
0%
Source: BestForecast at 1:06 AM PDT on May 18, 2013
Descriptive Forecast
Saturday
partlycloudy Mostly cloudy in the morning, then clear. High of 72F. Winds from the WSW at 5 to 15 mph.
Saturday 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 48 | 46 64 | 52 67 | 50 54 | 48
Wind 6 mph South 9 mph WSW 10 mph West 4 mph South
Humidity 95% 64% 54% 79%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 73% 2% 2% 10%
Conditions Fog Clear Clear Clear
Sunrise & Sunset
5:55 AM
8:14 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.71], Average RMSE [1.56]
The National Weather Service forecast quality is good. MaxT RMSE [2.26], Average RMSE [1.86] : Use NWS
Source: BestForecast at 1:06 AM PDT on May 18, 2013
Descriptive Forecast
Sunday
partlycloudy Partly cloudy in the morning, then clear. High of 81F. Winds from the West at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 55F. Winds from the SW at 5 to 10 mph shifting to the WNW after midnight.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 49 74 | 49 73 | 44 59 | 46
Wind 3 mph SE 10 mph WNW 10 mph West 3 mph SSW
Humidity 77% 42% 36% 63%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 28% 2% 2% 2%
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
5:55 AM
8:14 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.73], Average RMSE [1.79]
The National Weather Service forecast quality is good. MaxT RMSE [2.45], Average RMSE [1.71] : Use NWS
Source: BestForecast at 1:06 AM PDT on May 18, 2013
Descriptive Forecast
Monday
clear Clear. High of 84F. Winds from the NNW at 5 to 15 mph.
Monday Night
nt_mostlycloudy Overcast. Low of 52F. Winds from the WSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 59 | 47 79 | 49 75 | 45 58 | 46
Wind 5 mph North 6 mph North 9 mph West 5 mph WSW
Humidity 61% 34% 36% 65%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 2% 1% 2% 92%
Conditions Clear Clear Clear Overcast
Sunrise & Sunset
5:54 AM
8:15 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.88], Average RMSE [1.76]
The National Weather Service forecast quality is fair. MaxT RMSE [2.73], Average RMSE [2.05] : Use NWS
Source: BestForecast at 1:06 AM PDT on May 18, 2013
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy in the morning, then clear. High of 70F. Winds from the WSW at 5 to 15 mph.
Tuesday Night
nt_clear Clear. Low of 48F. Winds from the West at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 47 64 | 45 66 | 49 51 | 45
Wind 4 mph SW 9 mph WSW 14 mph West 8 mph WSW
Humidity 70% 51% 56% 77%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 91% 0% 0% 0%
Conditions Overcast Clear Clear Clear
Sunrise & Sunset
5:53 AM
8:16 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.05], Average RMSE [1.57]
The National Weather Service forecast quality is poor. MaxT RMSE [3.54], Average RMSE [2.53] : Use NWS
Source: BestForecast at 1:06 AM PDT on May 18, 2013
Descriptive Forecast
Wednesday
clear Clear. High of 70F. Winds from the NW at 10 to 15 mph.
Wednesday Night
nt_clear Clear. Low of 48F. Winds from the WNW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 38 62 | 33 65 | 38 51 | 38
Wind 6 mph NW 12 mph NNW 13 mph West 7 mph West
Humidity 65% 33% 40% 62%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 1% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:53 AM
8:17 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.79], Average RMSE [2.20]
The National Weather Service forecast quality is poor. MaxT RMSE [3.88], Average RMSE [2.29] : Use NWS
Source: BestForecast at 1:06 AM PDT on May 18, 2013
Descriptive Forecast
Thursday
clear Clear. High of 70F. Winds from the WNW at 5 to 15 mph.
Thursday Night
nt_clear Clear. Low of 48F. Winds from the WSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 49 | 33 61 | 35 63 | 40 52 | 44
Wind 6 mph NW 10 mph WNW 12 mph West 8 mph WSW
Humidity 53% 36% 45% 72%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:52 AM
8:18 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.44], Average RMSE [2.53]
The National Weather Service forecast quality is poor. MaxT RMSE [4.35], Average RMSE [2.35] : Use NWS
Source: BestForecast at 1:06 AM PDT on May 18, 2013
Descriptive Forecast
Friday
clear Clear. High of 68F. Winds from the WSW at 5 to 15 mph.
Friday Night
nt_clear Clear. Low of 48F. Winds from the WSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 43 61 | 43 62 | 43 48 | 44
Wind 6 mph WSW 10 mph West 12 mph WSW 7 mph WSW
Humidity 74% 50% 50% 84%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:51 AM
8:18 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.30], Average RMSE [2.27]
Source: BestForecast at 1:06 AM PDT on May 18, 2013
Descriptive Forecast
Saturday
clear Clear. High of 64F. Winds from the WSW at 5 to 15 mph.
Saturday Night
nt_clear Clear. Low of 48F. Winds from the WNW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 44 61 | 44 57 | 45 49 | 45
Wind 5 mph WSW 10 mph WSW 13 mph WSW 9 mph WNW
Humidity 77% 53% 61% 88%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 2% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:51 AM
8:19 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.31], Average RMSE [3.00]
Source: BestForecast at 1:06 AM PDT on May 18, 2013
Descriptive Forecast
Sunday
clear Clear. High of 73F. Winds from the WNW at 5 to 15 mph.
Sunday Night
nt_clear Clear. Low of 48F. Winds from the West at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 46 65 | 46 69 | 46 52 | 48
Wind 6 mph WNW 8 mph WNW 13 mph WNW 9 mph West
Humidity 84% 50% 46% 83%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 1% 6% 10% 5%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:20 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.51], Average RMSE [2.94]
Source: BestForecast at 1:06 AM PDT on May 18, 2013
Descriptive Forecast
Monday
clear Clear. High of 75F. Winds from the WNW at 5 to 15 mph.
Monday Night
nt_clear Clear. Low of 50F. Winds from the West at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 48 67 | 46 68 | 46 54 | 46
Wind 6 mph West 7 mph WNW 12 mph West 8 mph West
Humidity 85% 47% 47% 76%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 1% 1% 1% 1%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:50 AM
8:21 PM
Source: BestForecast at 1:06 AM PDT on May 18, 2013
Descriptive Forecast
Tuesday
clear Clear. High of 77F. Winds from the West at 5 to 15 mph.
Tuesday Night
nt_clear Clear. Low of 50F. Winds from the West at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 52 | 46 69 | 46 68 | 46 55 | 47
Wind 6 mph West 6 mph WNW 11 mph West 8 mph West
Humidity 80% 45% 47% 77%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Nearby
History & Almanac
May 18, 2013 Max Temp Min Temp
Normal (KHWD) 69 °F 53 °F
Record (KHWD) 76 °F (2000) 49 °F (2012)
Yesterday 65 °F 54 °F
Yesterday's Heating Degree Days: 5
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Good
PM2.5
Yesterday Good
OZONE
Current Good
PM2.5
Saturday Good
OZONE
Sunday Good
OZONE
Monday Good
OZONE
Tuesday Good
OZONE
Wednesday Good
OZONE
Coastal Water Temperatures
Place Temperature
San Francisco, CA 55.9 °F
Richmond, CA 61.0 °F
Port Chicago, CA 64.9 °F
Astronomy
May. 18, 2013 Rise Set
Actual Time 5:55 AM PDT 8:14 PM PDT
Civil Twilight 5:26 AM PDT 8:43 PM PDT
Nautical Twilight 4:49 AM PDT 9:20 PM PDT
Astronomical Twilight 4:09 AM PDT 10:00 PM PDT
Moon 1:30 PM PDT 1:43 AM PDT
Length Of Visible Light 15h 17m
Length of Day
14h 18m
Tomorrow will be 1m 34s longer.
First Quarter, 53% of the Moon is Illuminated
Today
First Quarter
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Today's Extremes
State Highs State Lows
78 °F
Needles
73 °F
Palm Springs
73 °F
Thermal
72 °F
Blythe
71 °F
El Centro
28 °F
Truckee-Tahoe
35 °F
Big Bear City
37 °F
Mount Shasta
39 °F
Weaverville
Snow Depth
Station Depth Elevation
Blue Lakes 0 in 8000 ft
Carson Pass 1 in 8500 ft
Forestdale Creek 1 in 8029 ft
Ebbetts Pass 0 in 8700 ft
Rubicon #2 1 in 7500 ft
WunderPhotos®
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Travel & Activities
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Aviation
City Temp. Conditions Updated
Hayward 55 °F Overcast 2:54 AM PDT
Oakland 54 °F Mostly Cloudy 3:53 AM PDT
Livermore 52 °F Mostly Cloudy 3:53 AM PDT
San Francisco 54 °F Scattered Clouds 3:51 AM PDT
Flight To ETA Status
FDX1419
Memphis, TN
KOAK 04:32AM On Time
FDX1468
Memphis, TN
KOAK 05:25AM On Time
UPS946
Louisville, KY
KOAK 05:53AM On Time
UAL1298
Kailua/Kona, HI
KSFO 04:22AM On Time
UAL396
Honolulu, HI
KSFO 04:47AM On Time
FDX1545
Memphis, TN
KSFO 05:07AM On Time
UAL1741
Kahului, HI
KSFO 05:10AM On Time
Flight Tracker by FlightAware FlightAware
Type Condition
Flight Rule: MVFR (KHWD)
Wind Speed: 6.0 kts.
Wind Dir: 270° (West)
Ceiling: 1700 ft

METAR KHWD 180954Z AUTO 25006KT 10SM OVC017 13/09 A3010 RMK AO2 SLP201 T01280089

Nearby Events
Event Date Forecast
No events within 10 mi of location. View all events.
Event data courtesy eviesays.com
Sports
Event Date Forecast
Mariners vs. Indians 1:05 PM EDT on May 18, 2013 Chance of a Thunderstorm, 72 °F
Blue Jays vs. Yankees 1:05 PM EDT on May 18, 2013 Partly Cloudy, 70 °F
Royals vs. Athletics 6:05 PM PDT on May 18, 2013 Clear, 68 °F
Royals vs. Athletics 1:05 PM PDT on May 19, 2013 Clear, 77 °F
Event Date Forecast
Elche vs. Almería 12:00 PM CEST on May 18, 2013 Clear, High 68° F/ 20° C
Mirandés vs. Hércules 12:00 PM CEST on May 18, 2013 Clear, High 69° F/ 21° C
Event Date Forecast
Sprint Showdown 7:46 PM EDT on May 18, 2013 Thunderstorm, 74 °F
NASCAR Sprint All-Star Race 9:00 PM EDT on May 18, 2013 Thunderstorm, 74 °F
Event Date Forecast
HP Byron Nelson Championship 8:30 AM CDT on May 18, 2013 Mostly Cloudy, 72 °F
HP Byron Nelson Championship 8:30 AM CDT on May 19, 2013 Partly Cloudy, 72 °F
U.S. Open Championship 8:30 AM PDT on June 13, 2013 Average High 70° F/ 21° C
U.S. Open Championship 8:30 AM PDT on June 14, 2013 Average High 71° F/ 21° C
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.

Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Castro Valley, Castro Valley, CA 51.4 °F - 46 °F 81% West  at  1.6 mph 0.00 in / hr 0 ft 3:53 AM PDT Normal
Agualinda Pool, Castro Valley, CA 52.5 °F - 32 °F 46% SSE  at  0.0 mph 0.00 in / hr 278 ft 3:55 AM PDT Normal
Columbia, Castro Valley, CA 51.1 °F - 48 °F 88% SW  at  0.0 mph 0.00 in / hr 539 ft 3:56 AM PDT Rapid Fire
Northwest of Eden Hospital, Castro Valley, CA 52.2 °F - 46 °F 80% North  at  1.2 mph 0.00 in / hr 180 ft 3:57 AM PDT Rapid Fire  
Palomares Hills, Castro Valley, CA 52.2 °F - 40 °F 62% SE  at  0.0 mph 0.00 in / hr 803 ft 3:56 AM PDT Normal  
Highland Subdivision, next to CSUEB, Hayward, CA 52.5 °F - 47 °F 81% WSW  at  0.0 mph 0.00 in / hr 480 ft 3:52 AM PDT Normal
RAWS OAKLAND SOUTH CA, Oakland, CA 47 °F 47 °F 47 °F 100% South  at  0 mph 0.00 in / hr 1095 ft 3:33 AM PDT MADIS
Eastmont Hills II, Oakland, CA 51.4 °F - 48 °F 88% SSE  at  0.0 mph 0.00 in / hr 427 ft 3:53 AM PDT Normal
Eastmont Hills, Oakland, CA 52.4 °F - 48 °F 86% South  at  0.0 mph 0.00 in / hr 423 ft 3:55 AM PDT Normal
Hayward Hills, sagehouse, Hayward, CA 49.1 °F 49 °F 47 °F 92% West  at  3.0 mph 0.00 in / hr 1020 ft 3:55 AM PDT Normal  
Hayward Hills, Hayward, CA 51.3 °F - 48 °F 89% South  at  3.0 mph 0.00 in / hr 597 ft 3:55 AM PDT Normal  
Southgate, Hayward, CA 53.9 °F - 48 °F 81% WSW  at  6.0 mph - / hr 19 ft 3:45 AM PDT Normal  
San Leandro, San Leandro, CA 53.1 °F - 48 °F 82% West  at  4.0 mph 0.00 in / hr 10 ft 3:56 AM PDT Rapid Fire
Twin Creeks, San Ramon, CA 54.4 °F - 45 °F 71% East  at  0.0 mph 0.00 in / hr 538 ft 3:57 AM PDT Rapid Fire  
PacWestRoofing.com, Oakland, CA 47.0 °F 47 °F 45 °F 94% SE  at  0.0 mph 0.00 in / hr 1171 ft 3:57 AM PDT Rapid Fire
MesoWest COLIS1 , Oakland, CA 51 °F - - - North  at  - 0.00 in / hr 8 ft 12:40 AM PDT MADIS
MesoWest TENYSN , Hayward, CA 55 °F - - - North  at  - 0.00 in / hr 25 ft 3:00 AM PDT MADIS
Bollinger Hills, San Ramon, CA 50.7 °F - 41 °F 69% North  at  0.0 mph 0.00 in / hr 400 ft 3:57 AM PDT Rapid Fire  
APRSWXNET Hayward CA , Hayward, CA 54 °F - 49 °F 84% West  at  6 mph 0.00 in / hr 21 ft 3:33 AM PDT MADIS
Danville South, Danville, CA 51.9 °F - 48 °F 86% SSW  at  1.0 mph 0.00 in / hr 463 ft 3:56 AM PDT Normal  
Camino Pablo, Moraga, CA 51.2 °F - 48 °F 89% SE  at  1.0 mph 0.00 in / hr 502 ft 3:57 AM PDT Rapid Fire  
FSTC - San Ramon, San Ramon, CA 52.6 °F - 48 °F 84% SSW  at  2.0 mph 0.00 in / hr 468 ft 3:49 AM PDT Normal
Maxwell Park, Oakland, CA 50.8 °F - 47 °F 88% SW  at  0.0 mph 0.00 in / hr 210 ft 3:54 AM PDT Normal
Montair School, Danville, CA 50.6 °F - 46 °F 84% ESE  at  2.0 mph 0.00 in / hr 200 ft 3:57 AM PDT Rapid Fire  
Summerview Court, San Ramon, CA 49.3 °F 49 °F 45 °F 84% ESE  at  0.0 mph 0.00 in / hr 427 ft 3:57 AM PDT Rapid Fire  
West Dublin, Dublin, CA 52.7 °F - 47 °F 81% North  at  0.0 mph 0.00 in / hr 381 ft 3:55 AM PDT Normal  
Canyon Lakes, San Ramon, CA 50.5 °F - 45 °F 80% South  at  0.0 mph 0.00 in / hr 492 ft 3:57 AM PDT Rapid Fire  
K6WL - San Ramon, San Ramon, CA 51.2 °F - 47 °F 86% South  at  0.0 mph - / hr 502 ft 3:48 AM PDT Normal  
APRSWXNET Oakland CA , Oakland, CA 50 °F - 47 °F 88% SW  at  0 mph 0.00 in / hr 200 ft 3:24 AM PDT MADIS
RAWS LAS TRAMPAS CA, Walnut Creek, CA 44 °F 37 °F 44 °F 100% SW  at  14 mph 0.00 in / hr 1759 ft 3:28 AM PDT MADIS
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