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  • Today

    May 27

    Sunshine and pleasant 78°Lo 51°
  • Sat

    May 28

    Mostly sunny 81°Lo 53°
    more
  • Sun

    May 29

    Mostly sunny 78°Lo 52°
    more
  • Mon

    May 30

    Sunny and very warm 82°Lo 54°
    more
  • Tue

    May 31

    Sunny and very warm 82°Lo 53°
    more
< Previous 8 hours Next 8 hours >
  Fri
8am
9am
  8am 9am
Forecast
Partly Cloudy
Partly Sunny
Temp (°F) 57° 60°
RealFeel® 60° 67°
Humidity 75% 68%
   
  8am 9am
Rain
 
0%
 
0%
Snow
 
0%
 
0%
Ice
 
0%
 
0%
   
  8am 9am
Wind (mph) 4 SE 4 S
UV Index 1 3
Cloud Cover 74% 43%
Dew Point 49° 50°
Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - May 27

more Historical Weather Data >
  Today Normal Record 5/27/2015
High 78° 73° N/A 63°
Low 51° 52° N/A 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:50 AM with 14:31 of sunlight, then sets at 8:21 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:18 AM with 10:50 of moolight, then sets at 11:08 AM

Castro Valley Weather Report

San Francisco: Milder air to build ahead of Memorial Day weekend

May 27, 2016; 12:12 PM ET

Following a stretch of cool days, milder air will begin to build across the Bay area heading into Memorial Day weekend. more >

ABC 7 San Francisco Headlines

Defending champion Warriors stave off elimination, beat OKC

The defending champion Warriors staved off elimination with a 120-111 victory over the Oklahoma City Thunder on Thursday night in Game 5 of the Western Conference finals.

Police detain second suspect in connection to fatal Novato High School shooting

Police kill only person who may know whereabouts of missing Vallejo teen