• Tonight

    May 22

    Lo 54°

    Mostly cloudy

    Hair Frizz Weather
    • Wind
      Gust
      21 mph
    • Precip
      9%
    • Hours of Precip
      0
  • Sat

    May 23

    75°Lo 52°

    Partly sunny and nice

    Watch for hair frizz
    • Wind
      Gust
      18 mph
    • Precip
      5%
    • Hours of Precip
      0
    more
  • Sun

    May 24

    80°Lo 54°

    Partly sunny

    Watch for hair frizz
    • Wind
      Gust
      18 mph
    • Precip
      3%
    • Hours of Precip
      0
    more
  • Mon

    May 25

    79°Lo 54°

    Mostly sunny

    Watch for hair frizz
    • Wind
      Gust
      20 mph
    • Precip
      3%
    • Hours of Precip
      0
    more
  • Tue

    May 26

    79°Lo 54°

    Sunshine and patchy clouds

    Watch for hair frizz
    • Wind
      Gust
      16 mph
    • Precip
      1%
    • Hours of Precip
      0
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
8am
9am 10am 11am 12pm 1pm
  8am 9am 10am 11am 12pm 1pm
Forecast
Cloudy
Cloudy
Cloudy
Mostly Cloudy
Cloudy
Mostly Cloudy
Temp (°F) 58° 60° 61° 65° 67° 70°
RealFeel® 58° 61° 63° 69° 71° 75°
Humidity 78% 72% 66% 59% 58% 53%
   
  8am 9am 10am 11am 12pm 1pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
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  8am 9am 10am 11am 12pm 1pm
Wind (mph) 6 WNW 6 WNW 6 WNW 7 WNW 7 W 8 SW
UV Index 1 2 2 4 4 5
Cloud Cover 98% 95% 98% 86% 92% 84%
Dew Point 51° 51° 50° 51° 52° 52°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - May 22

more Historical Weather Data >
  Today Normal Record 5/22/2014
High 72° N/A N/A 78°
Low 54° N/A N/A 56°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:51 AM with 14:24 of sunlight, then sets at 8:15 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:11 AM with 14:03 of moolight, then sets at 12:14 AM

Tracy Weather Report

San Francisco: Cool, Cloudy Weather to Linger for Holiday Weekend

May 23, 2015; 1:17 AM ET

More clouds and cooler weather can be expected across the Bay Area through the holiday weekend and into the new week. more >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Fri. Hair Frizz

Fri. Wind Maps

Fri. UV Index