• Early AM

    Dec 18

    Lo 43°

    A couple of showers

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

    Dec 18

    59°Lo 49°

    Mostly cloudy

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

    Dec 19

    58°Lo 47°

    Periods of rain

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

    Dec 20

    59°Lo 49°

    Times of clouds and sun

    Low ragweed pollen levels
    • Precip
      22%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      70%
    more
  • Sun

    Dec 21

    63°Lo 50°

    Dense fog in the morning

    Low ragweed pollen levels
    • Precip
      7%
    • Wind
      Speed
      6 mph
    • Cloud
      Cover
      77%
Next Previous
Hi 63° RealFeel® 61° Precipitation 7%

Day

N

E

S

W

  • NW 6 mph
  • Gusts: 9 mph

Dense fog in the morning; mostly cloudy

  • Max UV Index: 2 (Low)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 50° RealFeel® 47° Precipitation 6%

Night

N

E

S

W

  • NW 6 mph
  • Gusts: 8 mph

Mostly cloudy

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

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 63° N/A N/A 60°
Low 50° N/A N/A 34°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:18 AM with 9:33 of sunlight, then sets at 4:51 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:40 AM with 10:22 of moolight, then sets at 5:02 PM

Tracy Weather Report

San Francisco: Dry Weather Ahead for the Weekend

December 18, 2014; 2:49 AM ET

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

Sun. Dust & Dander

Sun. Wind Maps