• Today

    Mar 3

    64°Lo 42°

    Plenty of sunshine

    Very Good for an outdoor bbq
    • Precip
      5%
    • Hi
      RealFeel
      69°
    • Wind
      Gust
      10 mph
  • Wed

    Mar 4

    66°Lo 42°

    Mostly sunny

    Excellent for an outdoor bbq
    • Precip
      7%
    • Hi
      RealFeel
      71°
    • Wind
      Gust
      7 mph
    more
  • Thu

    Mar 5

    68°Lo 43°

    Plenty of sun

    Excellent for an outdoor bbq
    • Precip
      3%
    • Hi
      RealFeel
      74°
    • Wind
      Gust
      8 mph
    more
  • Fri

    Mar 6

    71°Lo 45°

    Plenty of sun

    Excellent for an outdoor bbq
    • Precip
      0%
    • Hi
      RealFeel
      78°
    • Wind
      Gust
      10 mph
    more
  • Sat

    Mar 7

    73°Lo 47°

    Plenty of sunshine

    Excellent for an outdoor bbq
    • Precip
      0%
    • Hi
      RealFeel
      77°
    • Wind
      Gust
      8 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
7pm
8pm 9pm 10pm 11pm Wed
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  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Temp (°F) 55° 52° 51° 50° 48° 48° 47° 46°
RealFeel® 54° 52° 51° 50° 49° 48° 48° 47°
Humidity 70% 74% 77% 78% 78% 78% 78% 78%
   
  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Rain
 
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Snow
 
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Ice
 
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  7pm 8pm 9pm 10pm 11pm 12am 1am 2am
Wind (mph) 5 WNW 5 WNW 4 WNW 4 WNW 4 NW 4 NW 4 S 2 SE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 11% 11% 11% 11% 11% 11% 11% 11%
Dew Point 45° 44° 44° 43° 42° 41° 40° 39°
Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Mar 3

more Historical Weather Data >
  Today Normal Record 3/3/2014
High 64° N/A N/A 58°
Low 42° N/A N/A 48°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:37 AM with 11:27 of sunlight, then sets at 6:04 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:34 PM with 13:18 of moolight, then sets at 5:52 AM

Castro Valley Weather Report

San Francisco: Dry Pattern to Return Bringing Sunny, Warm Days

March 3, 2015; 5:44 AM ET

San Francisco will get progressively warmer everyday this week, reaching 70 degrees F by the weekend. more >

Is Your Outdoor Gear Waterproof?

Dec 5, 2012; 5:00 AM ET Now that it's cold enough to hit the slopes, you may want to look more closely at what materials your winter sports gear is made of. As it turns out, not all waterproofing is created equal.

Tue. Outdoor Entertaining

Tue. Wind Maps

Tue. UV Index