• Today

    Apr 21

    71°Lo 42°

    Mostly cloudy

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Tue

    Apr 22

    61°Lo 39°

    Mostly cloudy, showers around

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Wed

    Apr 23

    65°Lo 44°

    Partial sunshine

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Thu

    Apr 24

    68°Lo 47°

    Periods of sun

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Fri

    Apr 25

    59°Lo 40°

    Cooler with a little rain

    Very Likely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
1am
2am 3am 4am 5am 6am 7am 8am
  1am 2am 3am 4am 5am 6am 7am 8am
Forecast
Mostly Clear
Mostly Clear
Partly Cloudy
Cloudy
Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Sunny
Temp (°F) 50° 48° 47° 46° 46° 44° 49° 54°
RealFeel® 45° 43° 42° 42° 43° 43° 48° 55°
Humidity 62% 65% 71% 79% 87% 90% 89% 76%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  1am 2am 3am 4am 5am 6am 7am 8am
Wind (mph) 7 N 7 N 6 N 5 N 4 N 4 N 3 NNW 3 NNW
UV Index 0 0 0 0 0 0 0 1
Cloud Cover 23% 17% 41% 51% 71% 79% 84% 10%
Dew Point 37° 37° 38° 40° 42° 42° 46° 47°
Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F Middle Grid line 40 F

Temperature History - Apr 21

more Historical Weather Data >
  Today Normal Record 4/21/2013
High 71° 69° N/A 80°
Low 42° 40° N/A 50°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:27 AM with 13:28 of sunlight, then sets at 7:55 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:29 AM with 10:31 of moolight, then sets at 12:00 PM

Top Story

Lakeport Weather Report

Chance of Rain in San Francisco on Tuesday

April 21, 2014; 4:56 AM ET

There hasn't been any measurable precipitation in San Francisco since April 4. more >

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

48 Hour Precipitation Forecast

Mon. Snow Day Potential