• Today

    Sep 17

    93°Lo 61°

    Sun mixing with clouds

    Excellent for biking
    • Precip
      7%
    • Hours of Precip
      0
    • Wind
      Gust
      11 mph
    more
  • Thu

    Sep 18

    84°Lo 61°

    Partly sunny and not as hot

    Excellent for biking
    • Precip
      25%
    • Hours of Precip
      0
    • Wind
      Gust
      10 mph
    more
  • Fri

    Sep 19

    87°Lo 62°

    Mostly sunny

    Excellent for biking
    • Precip
      3%
    • Hours of Precip
      0
    • Wind
      Gust
      11 mph
    more
  • Sat

    Sep 20

    90°Lo 60°

    Sunny and very warm

    Excellent for biking
    • Precip
      2%
    • Hours of Precip
      0
    • Wind
      Gust
      9 mph
  • Sun

    Sep 21

    88°Lo 59°

    Sunny and very warm

    Excellent for biking
    • Precip
      1%
    • Hours of Precip
      0
    • Wind
      Gust
      9 mph
    more
Next Previous
Hi 90° RealFeel® 93° Precipitation 2%

Day

N

E

S

W

  • W 5 mph
  • Gusts: 9 mph

Sunny and very warm

  • Max UV Index: 6 (High)
  • Thunderstorms: 10%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 60° RealFeel® 58° Precipitation 4%

Night

N

E

S

W

  • WNW 5 mph
  • Gusts: 9 mph

Mainly clear

  • Max UV Index: N/A
  • Thunderstorms: 8%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

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 17, 2014; 7:35 AM ET

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

Is Your Outdoor Gear Waterproof?

Dec 5, 2012; 5:00 AM ET Now that it's cold enough to hit the slopes, you may want to look more closely at what materials your winter sports gear is made of. As it turns out, not all waterproofing is created equal.