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    • Tonight

      Dec 9

      57° Lo
      A touch of rain late
      • 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
    • Sat

      Dec 10

      60° /45°F
      Morning rain, then a shower
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Sun

      Dec 11

      55° /46°
      Periods of sun and clouds
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Dec 12

      55° /49°
      Mostly cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Dec 13

      54° /45°
      Cloudy with a little rain
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    60°Hi RealFeel® 57° Precipitation 65%
    Cloudy; periods of rain in the morning followed by a shower in spots in the afternoon
    • W 8 mph
    • Gusts: 13 mph
    • Max UV Index: 1 (Low)
    • Thunderstorms: 20%
    • Precipitation: 0.13 in
    • Rain: 0.13 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 2 hrs
    • Hours of Rain: 2 hrs

    Night

    45°Lo RealFeel® 45° Precipitation 21%
    Clearing
    • NW 6 mph
    • Gusts: 9 mph
    • Max UV Index: N/A
    • Thunderstorms: 20%
    • 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 Dec 10

    • 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 12/10/2015
    High 60° 57° 70° (1958) 61°
    Low 45° 45° 29° (1972) 51°

    Sunrise/Sunset

    • Sunrise: 7:14 AM
    • Sunset: 4:51 PM
    • Duration: 9:37 hr

    Moonrise/Moonset

    • Moonrise: 2:41 PM
    • Moonset: 4:18 AM
    • Duration: 13:37 hr
    Astronomy

    Sat. Pollen

    Sat. Dust & Dander

    Sat. Wind Maps