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    • Today

      Sep 30

      65° /54°F
      Low clouds, then sunshine
      • Watch
      • for hair frizz
      • Wind Gust: 25 mph
      • Precip: 4%
      • Hours of Precip: 0
    • Sat

      Oct 1

      69° /55°
      Low clouds, then sunshine
      • Watch
      • for hair frizz
      • Wind Gust: 20 mph
      • Precip: 6%
      • Hours of Precip: 0
      More
    • Sun

      Oct 2

      67° /54°
      A passing afternoon shower
      • Watch
      • for hair frizz
      • Wind Gust: 22 mph
      • Precip: 55%
      • Hours of Precip: 0.5
      More
    • Mon

      Oct 3

      66° /51°
      Partly sunny and cool
      • Watch
      • for hair frizz
      • Wind Gust: 13 mph
      • Precip: 0%
      • Hours of Precip: 0
      More
    • Tue

      Oct 4

      69° /52°
      Remaining cool with some sun
      • Watch
      • for hair frizz
      • Wind Gust: 12 mph
      • Precip: 3%
      • Hours of Precip: 0
      More

    Day

    65°Hi RealFeel® 66° Precipitation 4%
    Breezy and cool with low clouds followed by sunshine
    • WNW 14 mph
    • Gusts: 25 mph
    • Max UV Index: 5 (Moderate)
    • Thunderstorms: 9%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    54°Lo RealFeel® 52° Precipitation 7%
    Mainly clear this evening followed by late-night low clouds
    • WNW 8 mph
    • Gusts: 17 mph
    • 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

    more Historical Weather Data >
      Today Normal Record 9/30/2015
    High 65° 76° N/A 68°
    Low 54° 53° N/A 55°

    Sunrise/Sunset

    • Sunrise: 7:04 AM
    • Sunset: 6:52 PM
    • Duration: 11:48 hr

    Moonrise/Moonset

    • Moonrise: 6:43 AM
    • Moonset: 7:00 PM
    • Duration: 12:17 hr
    Astronomy

    Foster City Weather Report

    Cooler air, showers to aid in wildfire efforts across California this weekend

    September 30, 2016; 6:54 AM ET

    Improving weather over the next several days will aid officials in battling wildfires across California. More >

    Fri. Hair Frizz

    Fri. Wind Maps

    Fri. UV Index