• Early AM

    Dec 18

    Lo 48°

    A shower possible

    Common Cold Weather
    • Avg
      Temp
      53°
    • Avg
      RealFeel
      48°
    • Hi
      RealFeel
      54°
    more
  • Today

    Dec 18

    57°Lo 49°

    Mostly cloudy

    Beneficial weather for colds
    • Avg
      Temp
      53°
    • Avg
      RealFeel
      52°
    • Hi
      RealFeel
      56°
    more
  • Fri

    Dec 19

    58°Lo 46°

    Morning rain, then a shower

    Neutral weather for colds
    • Avg
      Temp
      52°
    • Avg
      RealFeel
      52°
    • Hi
      RealFeel
      55°
  • Sat

    Dec 20

    57°Lo 47°

    Periods of sun

    Beneficial weather for colds
    • Avg
      Temp
      52°
    • Avg
      RealFeel
      53°
    • Hi
      RealFeel
      59°
    more
  • Sun

    Dec 21

    63°Lo 47°

    Fog in the a.m.; partly sunny

    Beneficial weather for colds
    • Avg
      Temp
      55°
    • Avg
      RealFeel
      55°
    • Hi
      RealFeel
      62°
    more
Next Previous
Hi 58° RealFeel® 55° Precipitation 67%

Day

N

E

S

W

  • SSE 6 mph
  • Gusts: 8 mph

Mostly cloudy; periods of rain in the morning followed by a shower in spots in the afternoon

  • Max UV Index: 1 (Low)
  • Thunderstorms: 20%
  • Precipitation: 0.18 in
  • Rain: 0.18 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2.5 hrs
  • Hours of Rain: 2.5 hrs
Lo 46° RealFeel® 48° Precipitation 16%

Night

N

E

S

W

  • N 4 mph
  • Gusts: 5 mph

Cloudy

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • 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 19

more Historical Weather Data >
  Today Normal Record 12/19/2013
High 58° 58° N/A 54°
Low 46° 36° N/A 39°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:22 AM with 9:29 of sunlight, then sets at 4:51 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:43 AM with 10:33 of moolight, then sets at 3:16 PM

Napa 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 >

Natural Ways To Combat Colds and Flu

Nov 30, 2012; 5:00 AM ET Flu season is here and will stick around until May. Here are a few natural remedies to ease pain and suffering.

Fri. Cold & Flu

Fri. UV Index