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    • Early AM

      Sep 29

      56° Lo
      Cloudy
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Today

      Sep 29

      67° /56°F
      Low clouds, then sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Fri

      Sep 30

      66° /56°
      Low clouds break for some sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sat

      Oct 1

      68° /54°
      Low clouds break for some sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Oct 2

      66° /55°
      A passing afternoon shower
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    67°Hi RealFeel® 68° Precipitation 2%
    Cool with low clouds followed by sunshine; breezy this afternoon
    • W 10 mph
    • Gusts: 22 mph
    • Max UV Index: 5 (Moderate)
    • Thunderstorms: 13%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    56°Lo RealFeel® 49° Precipitation 5%
    Breezy; mainly clear this evening followed by late-night low clouds
    • W 14 mph
    • Gusts: 21 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

    San Bruno Pollen Levels Sep 29

    • Extreme
    • Very High
    • High
    • Moderate
    • Low
    • Tree Pollen

      Low

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/29/2015
    High 67° 73° 93° (1966) 67°
    Low 56° 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; 5:50 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