• Today

    Sep 1

    78°Lo 60°

    Mostly sunny

    Watch for hair frizz
    • Wind
      Gust
      15 mph
    • Precip
      1%
    • Hours of Precip
      0
  • Tue

    Sep 2

    71°Lo 59°

    Low clouds followed by sun

    Advisory for hair frizz
    • Wind
      Gust
      13 mph
    • Precip
      1%
    • Hours of Precip
      0
    more
  • Wed

    Sep 3

    72°Lo 60°

    Low clouds, then sun

    Advisory for hair frizz
    • Wind
      Gust
      12 mph
    • Precip
      1%
    • Hours of Precip
      0
    more
  • Thu

    Sep 4

    73°Lo 59°

    Partly sunny

    Advisory for hair frizz
    • Wind
      Gust
      13 mph
    • Precip
      2%
    • Hours of Precip
      0
    more
  • Fri

    Sep 5

    73°Lo 58°

    Clouds, then sun

    Advisory for hair frizz
    • Wind
      Gust
      12 mph
    • Precip
      1%
    • Hours of Precip
      0
    more
Next Previous
Hi 78° RealFeel® 81° Precipitation 1%

Day

N

E

S

W

  • WNW 7 mph
  • Gusts: 15 mph

Mostly sunny

  • Max UV Index: 7 (High)
  • Thunderstorms: 1%
  • 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® 57° Precipitation 1%

Night

N

E

S

W

  • W 5 mph
  • Gusts: 10 mph

Mainly clear this evening followed by low clouds late

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • 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 1

more Historical Weather Data >
  Today Normal Record 9/1/2013
High 78° 74° 94° (1955) 74°
Low 60° 56° 49° (1981) 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:40 AM with 12:59 of sunlight, then sets at 7:39 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:23 PM with 10:29 of moolight, then sets at 11:52 PM

Top Story

San Bruno Weather Report

San Francisco: Bright, Sunny for First Week of September

September 1, 2014; 9:25 AM ET

San Francisco will see abundant sunshine through at least Thursday. more >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Mon. Hair Frizz

Mon. Wind Maps

Mon. UV Index