• Early AM

    Sep 3

    Lo 61°

    Low clouds

    Hair Frizz Weather
    • Wind
      Gust
      18 mph
    • Precip
      1%
    • Hours of Precip
      0
    more
  • Today

    Sep 3

    72°Lo 59°

    Low clouds, then sunshine

    Watch for hair frizz
    • Wind
      Gust
      18 mph
    • Precip
      7%
    • Hours of Precip
      0
  • Fri

    Sep 4

    71°Lo 56°

    Areas of low clouds, then sun

    Watch for hair frizz
    • Wind
      Gust
      27 mph
    • Precip
      5%
    • Hours of Precip
      0
    more
  • Sat

    Sep 5

    76°Lo 55°

    Low clouds, then sun

    Unlikely for hair frizz
    • Wind
      Gust
      17 mph
    • Precip
      2%
    • Hours of Precip
      0
    more
  • Sun

    Sep 6

    82°Lo 55°

    Plenty of sunshine

    Watch for hair frizz
    • Wind
      Gust
      15 mph
    • Precip
      1%
    • Hours of Precip
      0
    more
Next Previous
Hi 72° RealFeel® 73° Precipitation 3%

Day

N

E

S

W

  • W 15 mph
  • Gusts: 22 mph

Low clouds giving way to sunshine

  • Max UV Index: 6 (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 59° RealFeel® 55° Precipitation 7%

Night

N

E

S

W

  • W 8 mph
  • Gusts: 18 mph

Mainly clear early, then areas of low clouds forming

  • 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 3

more Historical Weather Data >
  Today Normal Record 9/3/2014
High 72° 78° N/A 75°
Low 59° 54° N/A 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:41 AM with 12:54 of sunlight, then sets at 7:35 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:12 PM with 14:10 of moolight, then sets at 1:22 PM

Foster City Weather Report

San Francisco: Sunny Skies, Pleasant Conditions to Last Into Labor Day Weekend

September 3, 2015; 3:13 AM ET

Sunny skies and seasonable conditions will follow low clouds each day through Saturday in the Bay Area. 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.

Thu. Hair Frizz

Thu. Wind Maps

Thu. UV Index