• Sun

    Jul 19

    76°Lo 58°

    Mostly sunny

    Watch for hair frizz
    • Wind
      Gust
      24 mph
    • Precip
      2%
    • Hours of Precip
      0
    more
  • Mon

    Jul 20

    67°Lo 59°

    Sunny

    Hair Frizz Weather
    • Wind
      Gust
      17 mph
    • Precip
      0%
    • Hours of Precip
      0
    more
  • Tue

    Jul 21

    67°Lo 58°

    Mostly sunny

    Hair Frizz Weather
    • Wind
      Gust
      16 mph
    • Precip
      2%
    • Hours of Precip
      0
  • Wed

    Jul 22

    67°Lo 57°

    Partial sunshine

    Hair Frizz Weather
    • Wind
      Gust
      15 mph
    • Precip
      2%
    • Hours of Precip
      0
    more
  • Thu

    Jul 23

    66°Lo 60°

    Mostly sunny

    Hair Frizz Weather
    • Wind
      Gust
      20 mph
    • Precip
      2%
    • Hours of Precip
      0
    more
Next Previous
Hi 67° RealFeel® 78° Precipitation 2%

Day

N

E

S

W

  • WSW 6 mph
  • Gusts: 16 mph

Mostly sunny

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 58° RealFeel® 59° Precipitation 1%

Night

N

E

S

W

  • SW 5 mph
  • Gusts: 16 mph

Mainly clear

  • 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 - Jul 21

more Historical Weather Data >
  Today Normal Record 7/21/2014
High 67° 72° 83° (2006) 76°
Low 58° 56° 49° (1954) 65°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:04 AM with 14:23 of sunlight, then sets at 8:27 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:26 AM with 12:07 of moolight, then sets at 11:33 PM

San Bruno Weather Report

San Francisco: Cooler, Comfortable Conditions to Start Week

July 4, 2015; 12:43 PM ET

The San Francisco area will remain cool and comfortable into the early part of the upcoming workweek. 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.