• Today

    Sep 17

    78°Lo 62°

    Sun mixing with clouds

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

    Sep 18

    76°Lo 56°

    Partly sunny

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

    Sep 19

    78°Lo 56°

    Mostly sunny

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

    Sep 20

    78°Lo 56°

    Plenty of sunshine

    Low ragweed pollen levels
    • Precip
      1%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      10%
    more
  • Sun

    Sep 21

    77°Lo 55°

    Plenty of sunshine

    Ragweed Pollen Weather
    • Precip
      1%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      9%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Mostly Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Mostly Sunny
Partly Cloudy
Temp (°F) 54° 59° 62° 65° 70° 73° 75° 76°
RealFeel® 50° 55° 60° 65° 71° 74° 76° 76°
Humidity 96% 88% 75% 65% 57% 52% 48% 45%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
1%
 
3%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (mph) 7 WNW 7 W 7 W 8 W 8 W 9 WSW 11 SW 12 SW
UV Index 0 0 1 3 4 5 6 5
Cloud Cover 23% 6% 4% 4% 5% 9% 10% 55%
Dew Point 53° 56° 54° 54° 54° 54° 54° 53°
Middle Grid line 80 F 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 Middle Grid line 50 F

Temperature History - Sep 17

more Historical Weather Data >
  Today Normal Record 9/17/2013
High 78° 85° N/A 74°
Low 62° 50° N/A 54°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:52 AM with 12:22 of sunlight, then sets at 7:14 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:00 AM with 14:24 of moolight, then sets at 3:24 PM

Top Story

Napa Weather Report

San Francisco: Sunshine, Seasonable Temperatures to Continue

September 17, 2014; 7:35 AM ET

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

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps