• Tonight

    Mar 5

    Lo 45°

    Clear and seasonably cool

    Migraine Headache Weather
    • Hi
      RealFeel
      75°
    • UV
      5 - Moderate
    • Cloud
      Cover
      0%
  • Fri

    Mar 6

    72°Lo 46°

    Plenty of sun

    Beneficial weather for migraines
    • Hi
      RealFeel
      78°
    • UV
      5 - Moderate
    • Cloud
      Cover
      0%
    more
  • Sat

    Mar 7

    73°Lo 48°

    Mostly sunny

    Beneficial weather for migraines
    • Hi
      RealFeel
      79°
    • UV
      5 - Moderate
    • Cloud
      Cover
      11%
    more
  • Sun

    Mar 8

    74°Lo 48°

    Mostly sunny and pleasant

    Beneficial weather for migraines
    • Hi
      RealFeel
      78°
    • UV
      5 - Moderate
    • Cloud
      Cover
      11%
    more
  • Mon

    Mar 9

    75°Lo 50°

    Mostly sunny and pleasant

    Beneficial weather for migraines
    • Hi
      RealFeel
      82°
    • UV
      5 - Moderate
    • Cloud
      Cover
      22%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
8pm
9pm 10pm 11pm Fri
12am
1am 2am 3am
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Forecast
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Temp (°F) 56° 54° 53° 51° 50° 49° 47° 46°
RealFeel® 54° 53° 53° 52° 51° 50° 49° 48°
Humidity 59% 63% 65% 66% 68% 70% 71% 73%
   
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Wind (mph) 7 NNE 6 NNE 5 NE 4 NE 4 NE 2 ENE 2 ENE 2 ENE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 0% 0% 0% 0% 0% 0% 0% 0%
Dew Point 42° 42° 41° 40° 40° 39° 38° 38°
Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Mar 5

more Historical Weather Data >
  Today Normal Record 3/5/2014
High 70° N/A N/A 67°
Low 45° N/A N/A 53°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:34 AM with 11:32 of sunlight, then sets at 6:06 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:23 PM with 12:31 of moolight, then sets at 6:54 AM

Castro Valley Weather Report

San Francisco: Dry Pattern, Warmth to Continue Through Weekend

March 5, 2015; 8:21 AM ET

Above-average temperatures and clear, sunny skies will sweep across San Francisco through out the rest of the week and into early next week. more >

Making a Forecast: The Sixth Sense

Feb 16, 2015; 5:00 AM ET What steps go into making a forecast?

Thu. Migraine Headache

Thu. UV Index