• Tonight

    Apr 18

    Lo 47°

    Mainly clear

    Migraine Headache Weather
    • Hi
      RealFeel
      70°
    • UV
      7 - High
    • Cloud
      Cover
      15%
  • Sat

    Apr 19

    69°Lo 47°

    Mostly sunny

    Beneficial weather for migraines
    • Hi
      RealFeel
      69°
    • UV
      7 - High
    • Cloud
      Cover
      15%
    more
  • Sun

    Apr 20

    74°Lo 43°

    Partly sunny and pleasant

    Beneficial weather for migraines
    • Hi
      RealFeel
      77°
    • UV
      7 - High
    • Cloud
      Cover
      27%
    more
  • Mon

    Apr 21

    68°Lo 47°

    Periods of clouds and sun

    Beneficial weather for migraines
    • Hi
      RealFeel
      66°
    • UV
      5 - Moderate
    • Cloud
      Cover
      70%
    more
  • Tue

    Apr 22

    62°Lo 40°

    Mostly cloudy, a shower; cool

    Beneficial weather for migraines
    • Hi
      RealFeel
      58°
    • UV
      5 - Moderate
    • Cloud
      Cover
      76%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
8am
9am 10am 11am 12pm 1pm
  8am 9am 10am 11am 12pm 1pm
Forecast
Sunny
Sunny
Sunny
Sunny
Sunny
Mostly Sunny
Temp (°F) 52° 56° 58° 62° 64° 66°
RealFeel® 55° 62° 65° 66° 70° 69°
Humidity 89% 80% 75% 72% 72% 70%
   
  8am 9am 10am 11am 12pm 1pm
Rain
 
0%
 
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0%
 
0%
 
0%
 
0%
Snow
 
0%
 
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0%
 
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Ice
 
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  8am 9am 10am 11am 12pm 1pm
Wind (mph) 0 0 3 N 7 SSW 7 SSW 10 SSW
UV Index 1 2 4 5 6 7
Cloud Cover 0% 0% 0% 0% 0% 25%
Dew Point 49° 50° 50° 53° 55° 56°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Apr 18

more Historical Weather Data >
  Today Normal Record 4/18/2013
High 68° 69° 90° (1950) 76°
Low 47° 42° 32° (1917) 41°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:29 AM with 13:19 of sunlight, then sets at 7:48 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:37 PM with 10:17 of moolight, then sets at 9:54 AM

Top Story

Napa Weather Report

San Francisco: No Rain in Sight, Morning Clouds to Break for Afternoon Sunshine

April 18, 2014; 2:06 PM ET

Through the holiday weekend, morning clouds will give way to mostly sunny skies. more >

Is it a Cold or the Flu?

Apr 7, 2014; 5:00 AM ET Symptoms caused by the common cold can often resemble those associated with the influenza virus, so how do you differentiate between the two?

Fri. Migraine Headache

Fri. UV Index