• Today

    Jun 30

    102°Lo 67°

    Partly sunny and very hot

    Unlikely for hair frizz
    • Wind
      Gust
      9 mph
    • Precip
      1%
    • Hours of Precip
      0
    more
  • Wed

    Jul 1

    103°Lo 70°

    Sunshine and very hot

    Unlikely for hair frizz
    • Wind
      Gust
      13 mph
    • Precip
      2%
    • Hours of Precip
      0
    more
  • Thu

    Jul 2

    97°Lo 69°

    Partly sunny and very hot

    Unlikely for hair frizz
    • Wind
      Gust
      12 mph
    • Precip
      11%
    • Hours of Precip
      1
  • Fri

    Jul 3

    93°Lo 66°

    Mostly sunny and very warm

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

    Jul 4

    92°Lo 63°

    Mostly sunny and very warm

    Watch for hair frizz
    • Wind
      Gust
      14 mph
    • Precip
      3%
    • Hours of Precip
      0
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Partly Sunny
Temp (°F) 77° 81° 85° 89° 92° 94° 95° 97°
RealFeel® 81° 88° 94° 99° 100° 100° 99° 99°
Humidity 49% 43% 40% 38% 35% 32% 30% 27%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
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Snow
 
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Ice
 
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 2 NNW 2 NW 2 WNW 4 W 5 WSW 6 WSW 7 W 8 W
UV Index 3 5 6 8 8 7 6 5
Cloud Cover 33% 33% 34% 35% 37% 39% 38% 39%
Dew Point 57° 56° 59° 61° 60° 60° 59° 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 Middle Grid line 75 F

Temperature History - Jul 2

more Historical Weather Data >
  Today Normal Record 7/2/2014
High 97° 90° N/A 95°
Low 69° 53° N/A 65°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:49 AM with 14:52 of sunlight, then sets at 8:41 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:09 PM with 10:35 of moolight, then sets at 7:44 AM

Lucerne Weather Report

San Francisco: Warm, Dry Through the Independence Day Weekend

June 30, 2015; 9:38 AM ET

The San Francisco area will remain dry and warm into the Independence Day weekend. 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.

Thu. Hair Frizz

Thu. Wind Maps

Thu. UV Index