• Today

    Dec 18

    58°Lo 51°

    A passing shower this morning

    Poor for home energy
    • Avg
      RealFeel
      53°
    • Hi
      RealFeel
      57°
    • Wind
      Speed
      5 mph
    more
  • Fri

    Dec 19

    59°Lo 47°

    A little rain in the morning

    Poor for home energy
    • Avg
      RealFeel
      52°
    • Hi
      RealFeel
      57°
    • Wind
      Speed
      5 mph
    more
  • Sat

    Dec 20

    58°Lo 49°

    Periods of sun

    Poor for home energy
    • Avg
      RealFeel
      53°
    • Hi
      RealFeel
      57°
    • Wind
      Speed
      4 mph
  • Sun

    Dec 21

    63°Lo 48°

    Areas of morning fog

    Poor for home energy
    • Avg
      RealFeel
      55°
    • Hi
      RealFeel
      63°
    • Wind
      Speed
      5 mph
    more
  • Mon

    Dec 22

    65°Lo 45°

    Clouds giving way to sun

    Poor for home energy
    • Avg
      RealFeel
      54°
    • Hi
      RealFeel
      64°
    • Wind
      Speed
      2 mph
    more
Next Previous
Times of clouds and sun 54° Lo 50° RealFeel® 55° / 49°

N

E

S

W

  • Precipitation: 25%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 90%
  • Cloud Cover: 70%
  • Dew Point: 48° F
  • Visibility: 10 mi
2 mph

Temperature History - Dec 20

more Historical Weather Data >
  Today Normal Record 12/20/2013
High 58° 58° N/A 59°
Low 49° 36° N/A 37°

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 5:45 AM with 10:21 of moolight, then sets at 4:06 PM

Napa Weather Report

San Francisco: Dry Weather Ahead for the Weekend

December 18, 2014; 9:19 AM ET

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

Energy Efficient Lightbulbs and S.A.D

Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.

Sat. Home Energy Efficiency

Sat. Degree Days

Sat. UV Index