• Tonight

    May 22

    Lo 50°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
  • Sat

    May 23

    74°Lo 49°

    Clouds giving way to some sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Sun

    May 24

    80°Lo 50°

    Mostly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      50 - Moderate
    more
  • Mon

    May 25

    79°Lo 50°

    Sunshine and beautiful

    Low ragweed pollen levels
    • Precip
      4%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      25%
    more
  • Tue

    May 26

    79°Lo 50°

    A thunderstorm in spots

    Ragweed Pollen Weather
    • Precip
      40%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      25%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
8pm
9pm 10pm 11pm Sat
12am
1am 2am 3am
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Forecast
Partly Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Cloudy
Cloudy
Cloudy
Temp (°F) 63° 60° 59° 57° 55° 55° 54° 52°
RealFeel® 58° 55° 55° 54° 53° 54° 55° 53°
Humidity 60% 66% 72% 76% 79% 80% 81% 82%
   
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Rain
 
0%
 
0%
 
0%
 
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0%
 
0%
 
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0%
Snow
 
0%
 
0%
 
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0%
 
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Ice
 
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  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Wind (mph) 15 N 12 NNW 9 NNW 8 NNW 6 NNW 5 NNW 2 NNW 2 N
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 70% 71% 77% 81% 77% 73% 70% 70%
Dew Point 49° 49° 50° 49° 48° 49° 48° 47°
Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - May 22

more Historical Weather Data >
  Today Normal Record 5/22/2014
High 69° 78° N/A 86°
Low 50° 45° N/A 50°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:53 AM with 14:30 of sunlight, then sets at 8:23 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:13 AM with 14:08 of moolight, then sets at 12:21 AM

Lucerne Weather Report

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

May 22, 2015; 11:37 PM ET

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

Fri. Pollen

Fri. Dust & Dander

Fri. Wind Maps