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    • Today

      Sep 29

      66° /55°F
      Clouds breaking for sun
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Fri

      Sep 30

      66° /56°
      Low clouds breaking; breezy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sat

      Oct 1

      68° /54°
      Some morning sun, then cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Oct 2

      67° /55°
      A passing afternoon shower
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Oct 3

      66° /53°
      Cool with some sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    Thursday
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    Forecast Mostly Sunny Mostly Sunny Mostly Sunny Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear
    Temp (°F) 65° 63° 61° 59° 57° 56° 56° 56°
    RealFeel® 65° 60° 57° 55° 54° 53° 53° 53°
    Wind (mph) 12 W 13 W 12 W 9 W 9 W 8 W 8 W 8 W
    precip
    4pm
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    Rain
    0%
    0%
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    0%
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    0%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
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    0%
    Ice
    0%
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    0%
    SKY
    4pm
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    7pm
    8pm
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    11pm
    UV Index 3 1 0 0 0 0 0 0
    Cloud Cover 22% 25% 25% 25% 25% 25% 25% 25%
    Humidity 62% 65% 68% 74% 79% 82% 84% 86%
    Dew Point 52° 51° 51° 51° 51° 51° 52° 52°
    Temp °F
    4pm
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    70° 65° 60° 55°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/29/2015
    High 66° 73° 93° (1966) 67°
    Low 55° 55° 45° (1955) 57°

    Sunrise/Sunset

    • Sunrise: 7:04 AM
    • Sunset: 6:54 PM
    • Duration: 11:50 hr

    Moonrise/Moonset

    • Moonrise: 5:47 AM
    • Moonset: 6:29 PM
    • Duration: 12:42 hr
    Astronomy

    San Bruno Weather Report

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

    September 29, 2016; 7:40 AM ET

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

    Thu. Pollen

    Thu. Dust & Dander

    Thu. Wind Maps