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    • Today

      Sep 30

      64° /55°F
      Breezy with clouds, then 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
    • Sat

      Oct 1

      68° /56°
      Low clouds break for some sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Oct 2

      66° /54°
      A shower in the afternoon
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Oct 3

      66° /52°
      Cool with some sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Oct 4

      68° /53°
      Clearing and remaining cool
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    Friday
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    Forecast Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Mostly Clear Mostly Clear Mostly Clear Mostly Clear
    Temp (°F) 64° 63° 62° 60° 59° 58° 57° 57°
    RealFeel® 63° 61° 58° 55° 54° 52° 52° 52°
    Wind (mph) 16 WNW 16 WNW 17 WNW 15 WNW 13 WNW 13 WNW 12 WNW 10 WNW
    precip
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    Rain
    0%
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    Snow
    0%
    0%
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    Ice
    0%
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    SKY
    3pm
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    6pm
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    10pm
    UV Index 4 2 1 0 0 0 0 0
    Cloud Cover 25% 25% 25% 25% 25% 25% 25% 25%
    Humidity 57% 57% 60% 64% 69% 73% 75% 79%
    Dew Point 49° 48° 48° 48° 49° 49° 49° 50°
    Temp °F
    3pm
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    7pm
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    65° 60° 55°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/30/2015
    High 64° 73° 94° (2001) 65°
    Low 55° 55° 41° (1950) 58°

    Sunrise/Sunset

    • Sunrise: 7:05 AM
    • Sunset: 6:53 PM
    • Duration: 11:48 hr

    Moonrise/Moonset

    • Moonrise: 6:43 AM
    • Moonset: 7:01 PM
    • Duration: 12:18 hr
    Astronomy

    San Bruno 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. Pollen

    Fri. Dust & Dander

    Fri. Wind Maps