• Today

    May 4

    64°Lo 44°

    Low clouds, then sun

    Excellent for running
    • Precip
      1%
    • Hours of Precip
      0
    • Wind
      Gust
      17 mph
  • Tue

    May 5

    69°Lo 44°

    Clouds breaking for sun

    Excellent for running
    • Precip
      1%
    • Hours of Precip
      0
    • Wind
      Gust
      18 mph
    more
  • Wed

    May 6

    71°Lo 47°

    Sunny and pleasant

    Excellent for running
    • Precip
      9%
    • Hours of Precip
      0
    • Wind
      Gust
      21 mph
    more
  • Thu

    May 7

    71°Lo 46°

    Pleasant with clouds and sun

    Excellent for running
    • Precip
      9%
    • Hours of Precip
      0.5
    • Wind
      Gust
      15 mph
    more
  • Fri

    May 8

    71°Lo 46°

    Partly sunny and cool

    Excellent for running
    • Precip
      3%
    • Hours of Precip
      0
    • Wind
      Gust
      18 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
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Forecast
Mostly Clear
Mostly Clear
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Mostly Clear
Mostly Clear
Cloudy
Cloudy
Cloudy
Temp (°F) 52° 50° 49° 49° 48° 47° 47° 47°
RealFeel® 48° 46° 45° 45° 45° 44° 44° 44°
Humidity 82% 86% 88% 86% 88% 90% 90% 89%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Rain
 
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Snow
 
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  9pm 10pm 11pm 12am 1am 2am 3am 4am
Wind (mph) 9 SW 8 SW 7 SW 7 SW 7 SW 7 SW 6 WSW 6 WSW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 19% 25% 25% 25% 25% 95% 95% 95%
Dew Point 47° 46° 45° 45° 45° 44° 44° 43°
Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - May 4

more Historical Weather Data >
  Today Normal Record 5/4/2014
High 64° 74° 92° (1990) 70°
Low 44° 48° 34° (1975) 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:09 AM with 13:54 of sunlight, then sets at 8:03 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:49 PM with 10:34 of moolight, then sets at 7:23 AM

Napa Weather Report

San Francisco: Seasonable Temperatures to Continue Through Week

May 4, 2015; 1:42 PM ET

A pattern of seasonable temperatures will continue through the first part of the new week, with low clouds in the morning and sunny conditions through the afternoon. more >

Avoid the Winter Workout Blues

Dec 26, 2012; 5:00 AM ET When it's snowing or cold, most of us want nothing more than to keep warm on the couch. But Violeta Yas has some tips to help you sneak in mini workouts at the office, regardless of the weather.