• Tonight

    Apr 20

    Lo 50°

    Increasing cloudiness

    Lawn Mowing Weather
    • Hours of Precip
      0
    • Precip
      2%
    • Hi
      RealFeel
      77°
  • Mon

    Apr 21

    62°Lo 49°

    Low clouds breaking; cooler

    Excellent for lawn mowing
    • Hours of Precip
      1.5
    • Precip
      18%
    • Hi
      RealFeel
      64°
    more
  • Tue

    Apr 22

    59°Lo 47°

    Mainly cloudy with a shower

    Good for lawn mowing
    • Hours of Precip
      1
    • Precip
      55%
    • Hi
      RealFeel
      57°
    more
  • Wed

    Apr 23

    62°Lo 51°

    Partly sunny

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      3%
    • Hi
      RealFeel
      64°
    more
  • Thu

    Apr 24

    62°Lo 54°

    Intervals of clouds and sun

    Excellent for lawn mowing
    • Hours of Precip
      4.5
    • Precip
      16%
    • Hi
      RealFeel
      64°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
8am
9am 10am 11am 12pm 1pm 2pm
  8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Partly Sunny
Partly Sunny
Partly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 52° 54° 56° 60° 64° 67° 70°
RealFeel® 53° 58° 63° 67° 73° 73° 76°
Humidity 89% 83% 77% 68% 60% 54% 48%
   
  8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
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  8am 9am 10am 11am 12pm 1pm 2pm
Wind (mph) 3 W 4 W 4 W 5 WSW 5 WSW 7 WSW 6 WSW
UV Index 1 2 4 6 7 8 7
Cloud Cover 35% 35% 31% 28% 14% 13% 11%
Dew Point 49° 49° 49° 49° 50° 50° 49°
Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F Middle Grid line 55 F Middle Grid line 50 F

Temperature History - Apr 20

more Historical Weather Data >
  Today Normal Record 4/20/2013
High 74° 63° 93° (2009) 71°
Low 50° 49° 42° (2008) 51°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:28 AM with 13:22 of sunlight, then sets at 7:50 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:33 AM with 10:23 of moolight, then sets at 10:56 AM

Top Story

San Francisco 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