• Today

    Jul 31

    95°Lo 65°

    Partly sunny and very warm

    Watch for hair frizz
    • Wind
      Gust
      9 mph
    • Precip
      2%
    • Hours of Precip
      0
  • Sat

    Aug 1

    90°Lo 62°

    Partly sunny and very warm

    Watch for hair frizz
    • Wind
      Gust
      12 mph
    • Precip
      10%
    • Hours of Precip
      0
    more
  • Sun

    Aug 2

    88°Lo 58°

    Warm with sun, some clouds

    Watch for hair frizz
    • Wind
      Gust
      13 mph
    • Precip
      4%
    • Hours of Precip
      0
    more
  • Mon

    Aug 3

    85°Lo 57°

    A t-storm around in the p.m.

    Watch for hair frizz
    • Wind
      Gust
      12 mph
    • Precip
      40%
    • Hours of Precip
      0.5
    more
  • Tue

    Aug 4

    84°Lo 56°

    Partly sunny

    Watch for hair frizz
    • Wind
      Gust
      12 mph
    • Precip
      3%
    • Hours of Precip
      0
    more
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Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Partly Sunny
Temp (°F) 90° 93° 94° 95° 93° 91° 87° 82°
RealFeel® 99° 99° 99° 97° 94° 90° 85° 79°
Humidity 34% 31% 29% 29% 30% 33% 40% 44%
   
  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Rain
 
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Snow
 
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Ice
 
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  1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
Wind (mph) 5 S 6 SSW 7 SW 7 WSW 7 WSW 7 WSW 7 W 7 W
UV Index 8 7 6 5 3 1 0 0
Cloud Cover 26% 26% 26% 26% 26% 26% 26% 46%
Dew Point 58° 58° 57° 58° 58° 58° 60° 58°
Middle Grid line 100 F Middle Grid line 95 F Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F

Temperature History - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2014
High 95° 93° N/A 103°
Low 65° 54° N/A 66°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:11 AM with 14:13 of sunlight, then sets at 8:24 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:32 PM with 11:10 of moolight, then sets at 7:42 AM

Lucerne Weather Report

San Francisco: Dry Weather Continues in the Bay Area

July 31, 2015; 4:41 AM ET

The only fly in the ointment in the forecast will be low morning clouds which may cause travel delays at San Francisco International Airport. 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