• Today

    Feb 8

    72°Lo 47°

    Plenty of sunshine

    Beneficial weather for migraines
    • Hi
      RealFeel
      72°
    • UV
      4 - Moderate
    • Cloud
      Cover
      0%
    more
  • Tue

    Feb 9

    71°Lo 48°

    Plenty of sunshine

    Beneficial weather for migraines
    • Hi
      RealFeel
      73°
    • UV
      4 - Moderate
    • Cloud
      Cover
      7%
    more
  • Wed

    Feb 10

    69°Lo 47°

    Partly sunny

    Beneficial weather for migraines
    • Hi
      RealFeel
      71°
    • UV
      4 - Moderate
    • Cloud
      Cover
      27%
  • Thu

    Feb 11

    69°Lo 48°

    Periods of clouds and sun

    Beneficial weather for migraines
    • Hi
      RealFeel
      72°
    • UV
      4 - Moderate
    • Cloud
      Cover
      46%
    more
  • Fri

    Feb 12

    67°Lo 47°

    Intervals of clouds and sun

    Beneficial weather for migraines
    • Hi
      RealFeel
      70°
    • UV
      4 - Moderate
    • Cloud
      Cover
      60%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
1am
2am 3am 4am 5am 6am 7am 8am
  1am 2am 3am 4am 5am 6am 7am 8am
Forecast
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Clear
Mostly Sunny
Temp (°F) 52° 51° 51° 51° 50° 49° 48° 50°
RealFeel® 53° 52° 52° 51° 51° 51° 50° 53°
Humidity 83% 83% 84% 84% 85% 84% 92% 90%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
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  1am 2am 3am 4am 5am 6am 7am 8am
Wind (mph) 2 SE 2 SE 2 SE 2 WNW 2 NW 2 NW 2 NNW 2 N
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 26% 26% 26% 26% 26% 26% 26% 26%
Dew Point 47° 46° 46° 46° 46° 45° 46° 48°
Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Feb 10

more Historical Weather Data >
  Today Normal Record 2/10/2015
High 69° 60° N/A 63°
Low 47° 45° N/A 45°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:04 AM with 10:38 of sunlight, then sets at 5:42 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:21 AM with 12:07 of moolight, then sets at 8:28 PM

Castro Valley Weather Report

San Francisco: Warmth to fall short of record highs early this week

February 8, 2016; 2:13 PM ET

Milder air will build across San Francisco this week with temperatures running above average. more >

Wed. Migraine Headache

Wed. UV Index