• Today

    Apr 25

    60°Lo 48°

    Cloudy, then some sun, breezy

    Beneficial weather for migraines
    • Hi
      RealFeel
      60°
    • UV
      6 - High
    • Cloud
      Cover
      72%
  • Sun

    Apr 26

    67°Lo 49°

    Plenty of sun

    Beneficial weather for migraines
    • Hi
      RealFeel
      70°
    • UV
      8 - Very High
    • Cloud
      Cover
      7%
    more
  • Mon

    Apr 27

    74°Lo 50°

    Abundant sunshine

    Beneficial weather for migraines
    • Hi
      RealFeel
      80°
    • UV
      8 - Very High
    • Cloud
      Cover
      7%
    more
  • Tue

    Apr 28

    71°Lo 50°

    Mostly sunny and pleasant

    Beneficial weather for migraines
    • Hi
      RealFeel
      75°
    • UV
      8 - Very High
    • Cloud
      Cover
      24%
    more
  • Wed

    Apr 29

    70°Lo 47°

    Mostly sunny

    Beneficial weather for migraines
    • Hi
      RealFeel
      73°
    • UV
      8 - Very High
    • Cloud
      Cover
      12%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
9pm
10pm 11pm Sun
12am
1am 2am 3am 4am
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Temp (°F) 54° 54° 53° 52° 52° 51° 49° 48°
RealFeel® 50° 50° 50° 49° 50° 49° 48° 48°
Humidity 72% 71% 71% 73% 75% 77% 78% 78%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Rain
 
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0%
Snow
 
0%
 
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Ice
 
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  9pm 10pm 11pm 12am 1am 2am 3am 4am
Wind (mph) 8 WSW 8 WSW 7 WSW 7 WSW 6 WSW 6 WSW 5 WSW 5 W
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 21% 24% 25% 25% 25% 25% 25% 25%
Dew Point 45° 45° 44° 44° 44° 44° 43° 42°
Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Apr 25

more Historical Weather Data >
  Today Normal Record 4/25/2014
High 60° N/A N/A 56°
Low 48° N/A N/A 50°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:20 AM with 13:33 of sunlight, then sets at 7:53 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:25 PM with 13:54 of moolight, then sets at 2:19 AM

Castro Valley Weather Report

San Francisco: Dry Pattern to Continue After Weekend Showers

April 25, 2015; 3:41 PM ET

Warm and dry conditions will resume after showers dampened the San Francisco area during the first part of the weekend. more >

Sat. Migraine Headache

Sat. UV Index