Home   | News   | Sports   | Living   | Entertainment   | Business   | Opinion   | Choose a Publication   | Help

Bay Area Forecast

Today's Highs/Lows
Concord 81° / 60°
Fairfield 81° / 57°
Fremont 78° / 59°
Hayward 72° / 60°
Livermore 82° / 60°
Moffett Field 77° / 59°
Napa 76° / 56°
Oakland 72° / 60°
Redwood City 75° / 60°
San Francisco 71° / 59°
San Jose 79° / 58°
San Rafael 73° / 56°
Santa Cruz 75° / 57°

Going Somewhere?

Selected Highs/Lows
Arcata 65° / 54°
Bakersfield 97° / 69°
Fresno 94° / 63°
Henderson 104° / 79°
Los Angeles 85° / 67°
Monterey 72° / 59°
Mount Shasta 89° / 51°
Palm Springs 113° / 82°
Redding 95° / 64°
Reno 90° / 58°
Sacramento 85° / 57°
San Diego 80° / 69°
S. Lake Tahoe 79° / 45°
Ukiah 82° / 54°
Yosemite 86° / 62°
Weather

Current Conditions
Update: 9:54 AM

Castro Valley, CA
Clear

Clear Temperature: 67°
Wind: West 9 mph
Dew point:55°
Pressure:30.02 in.
Humidity: 66%
Visibility: 10.0 miles
Observed at: Hayward, CA

Forecast for Castro Valley

partlycloudy

Tuesday

Sun and clouds mixed. High 72F. Winds WNW at 10 to 20 mph.

nt_partlycloudy

Tuesday Night

Partly cloudy skies early will give way to cloudy skies late. Low near 60F. Winds WNW at 10 to 20 mph.

partlycloudy

Wednesday

Partly cloudy. High 74F. Winds WNW at 10 to 20 mph.

Bay Area Temps

Updated: 1:50 PM EDT on August 04, 2015
Fairfield
71°
Half Moon Bay
68°
Hayward
67°
Livermore
70°
Moffett Field
69°
Napa
68°
Novato
68°
Oakland
69°
Richmond
69°
San Francisco
66°
San Jose
68°
Santa Rosa
63°
Walnut Creek
70°
Map


World Weather Search

Enter any City, State or ZIP Code, or Airport Code or Country

5 Day Forecast for ZIP Code 94546

Tuesday Wednesday Thursday Friday Saturday
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Clear
Partly Cloudy
Partly Cloudy
High: 72°
Low: 60°
Detail | Almanac
Partly Cloudy
High: 74°
Low: 59°
Detail | Almanac
Mostly Cloudy
High: 77°
Low: 60°
Detail | Almanac
Clear
High: 77°
Low: 61°
Detail | Almanac
Partly Cloudy
High: 73°
Low: 60°
Detail | Almanac

Extended forecast for Castro Valley

nt_partlycloudy Wednesday Night

Partly cloudy early with increasing clouds overnight. Low 59F. Winds NW at 10 to 15 mph.

mostlycloudy Thursday

Considerable cloudiness. High 77F. Winds WNW at 10 to 15 mph.

nt_partlycloudy Thursday Night

Partly cloudy skies. Low around 60F. Winds WNW at 10 to 15 mph.

clear Friday

Mostly sunny. High 77F. Winds WSW at 10 to 20 mph.

nt_clear Friday Night

A few clouds overnight. Low 61F. Winds W at 10 to 20 mph.

partlycloudy Saturday

Partly cloudy skies. High 73F. Winds W at 10 to 20 mph.

nt_partlycloudy Saturday Night

Mostly clear skies early then becoming mostly cloudy later at night. Low near 60F. Winds W at 10 to 20 mph.

clear Sunday

A few passing clouds, otherwise generally sunny. High 72F. Winds W at 10 to 20 mph.

nt_partlycloudy Sunday Night

A few clouds from time to time. Low around 60F. Winds W at 10 to 20 mph.

clear Monday

Mainly sunny. High 73F. Winds WNW at 10 to 20 mph.

nt_clear Monday Night

Mainly clear early, then a few clouds later on. Low near 60F. Winds W at 10 to 20 mph.

clear Tuesday

Mainly sunny. High 76F. Winds WNW at 10 to 20 mph.

nt_clear Tuesday Night

Clear skies. Low around 60F. Winds WNW at 10 to 20 mph.

clear Wednesday

Sunny. High 79F. Winds WNW at 10 to 20 mph.

nt_clear Wednesday Night

A few clouds overnight. Low 61F. Winds WNW at 10 to 15 mph.

partlycloudy Thursday

Some clouds in the morning will give way to mainly sunny skies for the afternoon. High near 80F. Winds WNW at 10 to 20 mph.

nt_clear Thursday Night

Clear skies. Low 62F. Winds W at 10 to 15 mph.

clear Friday

A mainly sunny sky. High near 80F. Winds WNW at 10 to 20 mph.

nt_clear Friday Night

Clear. Low 62F. Winds WNW at 10 to 15 mph.

Almanac

Key: T = Trace of precipitation
MM = data not available

August 4, 2015
Normal high: 74°
Record high: 77° (2005)
 
Normal low: 58°
Record low: 55° (2013)
 

Complete weather almanac

Astronomy

Sunrise: 06:14 AM (PDT)
Moon Rise: 11:06 PM (PDT)
 
Sunset: 08:13 PM (PDT)
Moon Set: 11:09 AM (PDT)
Moon Phase
 
Aug. 04 Aug. 07 Aug. 14 Aug. 22 Aug. 29

Air Pollution Forecast for Oakland

  Air Quality AQ Index Pollutant
YesterdayGoodOZONE
YesterdayGoodPM2.5
CurrentGoodPM2.5
CurrentGoodOZONE
TueGood PM2.5
WedGood OZONE
ThuGood OZONE
FriGood OZONE
SatGood OZONE

Bay Area Conditions

  Yesterday Today Conditions
  High Low High Low  
Antioch 81° 63° 81° 60° Scattered Clouds
Benicia 81° 63° 81° 60° Scattered Clouds
Berkeley 75° 64° 72° 60° Mostly Cloudy
Brentwood 82° 64° 82° 60° Overcast
Concord 81° 63° 81° 60° Scattered Clouds
Fairfield 84° 61° 81° 57° Clear
Fremont 77° 63° 78° 59° Mostly Cloudy
Half Moon Bay 73° 64° 75° 60° Mostly Cloudy
Hayward 73° 63° 72° 60° Clear
Livermore 82° 64° 82° 60° Overcast
Moffett Field 77° 63° 77° 59° Overcast
Napa 82° 59° 76° 56° Scattered Clouds
Novato 75° 57° 73° 56° Overcast
Oakland 75° 64° 72° 60° Mostly Cloudy
Richmond 75° 64° 72° 60° Mostly Cloudy
Redwood City 73° 64° 75° 60° Mostly Cloudy
San Francisco 73° 63° 71° 59° Mostly Cloudy
San Jose 77° 61° 79° 58° Mostly Cloudy
San Mateo 73° 63° 71° 59° Mostly Cloudy
San Rafael 75° 57° 73° 56° Overcast
San Ramon 82° 64° 82° 60° Overcast
Santa Rosa 79° 57° 75° 54° Overcast
Santa Cruz 73° 55° 75° 57° Partly Cloudy
Tracy 90° 61° 87° 57° Clear
Vacaville 91° 63° 86° 58° Clear
Walnut Creek 81° 63° 81° 60° Scattered Clouds
Arcata 64° 57° 65° 54° Overcast
Bakersfield 99° 70° 97° 69° Clear
Fresno 95° 68° 94° 63° Scattered Clouds
Henderson 105° 80° 104° 79° Clear
Los Angeles 84° 66° 85° 67° Clear
Monterey 72° 63° 72° 59° Clear
Mount Shasta 90° 55° 89° 51° Clear
Palm Springs 109° 81° 113° 82° Clear
Redding 99° 70° 95° 64° Clear
Reno 93° 61° 90° 58° Partly Cloudy
Sacramento 88° 61° 85° 57° Clear
San Diego 79° 70° 80° 69° Partly Cloudy
South Lake Tahoe 82° 45° 79° 45° Clear
Ukiah 88° 57° 82° 54° Overcast
Yosemite National Park 93° 59° 86° 62° Clear
Copyright © 2015 The Weather Underground, Inc.