• Tonight

    Sep 18

    Lo 59°

    Increasing clouds and mild

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
  • Fri

    Sep 19

    68°Lo 59°

    Low clouds, then sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Sat

    Sep 20

    66°Lo 58°

    Areas of low clouds, then sun

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      7 - Low
    more
  • Sun

    Sep 21

    66°Lo 58°

    Areas of low clouds, then sun

    Low ragweed pollen levels
    • Precip
      2%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      57%
    more
  • Mon

    Sep 22

    65°Lo 58°

    Mostly sunny

    Ragweed Pollen Weather
    • Precip
      1%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      22%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
11pm
Fri
12am
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  11pm 12am 1am 2am 3am 4am 5am 6am
Forecast
Cloudy
Cloudy
Partly Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Temp (°F) 65° 64° 63° 62° 61° 60° 59° 60°
RealFeel® 62° 62° 61° 61° 59° 58° 57° 58°
Humidity 76% 80% 83% 86% 88% 90% 94% 93%
   
  11pm 12am 1am 2am 3am 4am 5am 6am
Rain
 
0%
 
0%
 
0%
 
0%
 
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0%
Snow
 
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Ice
 
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  11pm 12am 1am 2am 3am 4am 5am 6am
Wind (mph) 2 N 2 N 2 NNW 2 NW 3 NW 4 NNE 4 NNE 4 N
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 64% 56% 47% 100% 100% 97% 95% 95%
Dew Point 57° 57° 57° 57° 57° 57° 58° 57°
Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F

Temperature History - Sep 18

more Historical Weather Data >
  Today Normal Record 9/18/2013
High 72° 66° N/A 66°
Low 59° 50° N/A 46°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:54 AM with 12:19 of sunlight, then sets at 7:13 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:56 AM with 14:07 of moolight, then sets at 4:03 PM

Top Story

Half Moon Bay Weather Report

San Francisco: Sunshine, Seasonable Temperatures to Continue

September 18, 2014; 4:37 PM ET

The Bay Area will continue to feature sunshine and seasonable temperatures as the summer season comes to a close. more >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps