• Today

    Sep 18

    86°Lo 60°

    Clearing

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      12%
    • Hi
      RealFeel
      88°
    more
  • Fri

    Sep 19

    87°Lo 61°

    Mostly sunny

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      1%
    • Hi
      RealFeel
      86°
    more
  • Sat

    Sep 20

    90°Lo 60°

    Partly sunny

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      2%
    • Hi
      RealFeel
      91°
  • Sun

    Sep 21

    90°Lo 58°

    Sunny and very warm

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      0%
    • Hi
      RealFeel
      92°
    more
  • Mon

    Sep 22

    90°Lo 59°

    Sunny and very warm

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      1%
    • Hi
      RealFeel
      93°
    more
Next Previous
Mainly clear 79° Lo 68° RealFeel® 75° / 64°

N

E

S

W

  • Precipitation: 1%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 54%
  • Cloud Cover: 11%
  • Dew Point: 55° F
  • Visibility: 10 mi
6 mph

Temperature History - Sep 20

more Historical Weather Data >
  Today Normal Record 9/20/2013
High 90° 88° 104° (1939) 82°
Low 60° 59° 43° (1965) 55°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:50 AM with 12:15 of sunlight, then sets at 7:05 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:38 AM with 13:30 of moolight, then sets at 5:08 PM

Top Story

Patterson Weather Report

San Francisco: Sunshine, Seasonable Temperatures to Continue

September 18, 2014; 6:37 AM ET

The Bay Area will continue to feature sunshine and seasonable temperatures as the summer season comes to a close. 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?

Sat. Degree Days

Sat. Evapotranspiration