• Tonight

    Dec 18

    Lo 52°

    Rain beginning late evening

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Fri

    Dec 19

    58°Lo 47°

    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

    57°Lo 50°

    Fog in the morning, then rain

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

    Dec 21

    63°Lo 48°

    Areas of fog in the morning

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

    Dec 22

    65°Lo 46°

    Areas of morning fog

    Ragweed Pollen Weather
    • Precip
      4%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      59%
    more
Next Previous
Hi 57° RealFeel® 56° Precipitation 65%

Day

N

E

S

W

  • SSW 4 mph
  • Gusts: 5 mph

Areas of fog in the morning; otherwise, mostly cloudy with periods of rain in the afternoon

  • Max UV Index: 1 (Low)
  • Thunderstorms: 1%
  • Precipitation: 0.12 in
  • Rain: 0.12 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 50° RealFeel® 50° Precipitation 68%

Night

N

E

S

W

  • SW 4 mph
  • Gusts: 6 mph

Rain and drizzle in the evening; dense fog late with a shower in spots

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.13 in
  • Rain: 0.13 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 3 hrs
  • Hours of Rain: 3 hrs

Temperature History - Dec 20

more Historical Weather Data >
  Today Normal Record 12/20/2013
High 57° 58° 79° (1999) 60°
Low 50° 36° 23° (2006) 38°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:24 AM with 9:29 of sunlight, then sets at 4:53 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:46 AM with 10:22 of moolight, then sets at 4:08 PM

Santa Rosa 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 >

Sat. Dust & Dander

Sat. Wind Maps