• Tonight

    Apr 20

    Lo 47°

    Cool with increasing clouds

    Lawn Mowing Weather
    • Hours of Precip
      0
    • Precip
      2%
    • Hi
      RealFeel
      80°
  • Mon

    Apr 21

    66°Lo 48°

    Partly sunny and not as warm

    Excellent for lawn mowing
    • Hours of Precip
      2
    • Precip
      20%
    • Hi
      RealFeel
      66°
    more
  • Tue

    Apr 22

    62°Lo 45°

    Mostly cloudy with a shower

    Good for lawn mowing
    • Hours of Precip
      1
    • Precip
      55%
    • Hi
      RealFeel
      61°
    more
  • Wed

    Apr 23

    66°Lo 44°

    Cool with partial sunshine

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      3%
    • Hi
      RealFeel
      70°
    more
  • Thu

    Apr 24

    68°Lo 50°

    Periods of sun

    Excellent for lawn mowing
    • Hours of Precip
      4.5
    • Precip
      20%
    • Hi
      RealFeel
      69°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
10pm
11pm Mon
12am
1am 2am 3am 4am 5am
  10pm 11pm 12am 1am 2am 3am 4am 5am
Forecast
Clear
Mostly Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Cloudy
Cloudy
Mostly Cloudy
Temp (°F) 54° 52° 50° 51° 51° 49° 48° 48°
RealFeel® 52° 51° 48° 49° 47° 46° 46° 45°
Humidity 77% 82% 86% 85% 86% 87% 92% 93%
   
  10pm 11pm 12am 1am 2am 3am 4am 5am
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%
   
  10pm 11pm 12am 1am 2am 3am 4am 5am
Wind (mph) 4 SSW 4 SSW 4 SSW 5 SSW 5 SSW 5 SSW 4 SW 5 WSW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 0% 20% 31% 35% 41% 53% 70% 83%
Dew Point 47° 47° 46° 47° 47° 46° 46° 46°
Middle Grid line 55 F Middle Grid line 50 F Middle Grid line 45 F

Temperature History - Apr 20

more Historical Weather Data >
  Today Normal Record 4/20/2013
High 78° 69° 94° (1931) 80°
Low 47° 42° 29° (1933) 42°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:27 AM with 13:23 of sunlight, then sets at 7:50 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:33 AM with 10:21 of moolight, then sets at 10:54 AM

Top Story

Napa Weather Report

Chance of Rain in San Francisco on Tuesday

April 20, 2014; 9:00 PM ET

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

Why Do Leaves Change Color?

Sep 20, 2011; 5:00 AM ET Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?

Current Drought Status

Current Soil Conditions

Sun. Overnight Freeze

Sun. Degree Days

Sun. Evapotranspiration