• Today

    Dec 18

    58°Lo 51°

    Mostly cloudy

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

    Dec 19

    59°Lo 46°

    Morning rain, then a shower

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

    Dec 20

    58°Lo 50°

    Fog in the morning, then rain

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

    Dec 21

    63°Lo 46°

    Areas of fog in the morning

    Low ragweed pollen levels
    • Precip
      10%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      70%
    more
  • Mon

    Dec 22

    65°Lo 44°

    Fog in the morning; clearing

    Ragweed Pollen Weather
    • Precip
      4%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      59%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
8am
9am 10am 11am 12pm 1pm 2pm 3pm
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
Temp (°F) 49° 49° 52° 54° 55° 57° 58° 57°
RealFeel® 47° 48° 52° 54° 55° 57° 57° 55°
Humidity 94% 93% 88% 85% 82% 78% 76% 77%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Rain
 
11%
 
11%
 
11%
 
11%
 
7%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Wind (mph) 5 N 5 NNW 5 N 5 NE 5 ESE 5 SE 5 SE 5 SE
UV Index 0 0 1 1 1 1 1 0
Cloud Cover 97% 95% 91% 94% 95% 95% 93% 92%
Dew Point 47° 47° 49° 50° 50° 50° 50° 50°
Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Dec 18

more Historical Weather Data >
  Today Normal Record 12/18/2013
High 58° N/A N/A 59°
Low 51° N/A N/A 36°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:22 AM with 9:30 of sunlight, then sets at 4:52 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:44 AM with 10:50 of moolight, then sets at 2:34 PM

Rohnert Park Weather Report

San Francisco: Dry Weather Ahead for the Weekend

December 18, 2014; 3:34 PM ET

Conditions will turn dry for San Francisco this weekend and last into next week. more >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps