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Personalized Forecasts

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    • Today

      Sep 20

      69° /56°F
      Mostly cloudy
      • 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: Moderate
    • Thu

      Sep 21

      72° /57°
      Mostly sunny
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Fri

      Sep 22

      67° /54°
      Cool with plenty of sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sat

      Sep 23

      73° /54°
      Nice with sunshine
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Sep 24

      76° /55°
      Sunny and nice
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    69°Hi RealFeel® 70° Precipitation 25%
    Mostly cloudy
    • Winds from the
    • WNW 12 mph
    • Gusts: 20 mph
    • Max UV Index: 5 (Moderate)
    • Thunderstorms: 20%
    • 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® 51° Precipitation 5%
    Mostly cloudy this evening, then mainly clear late
    • Winds from the
    • WNW 12 mph
    • Gusts: 17 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 Sep 20

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

      Moderate

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/20/2016
    High 69° 74° 93° (2015) 73°
    Low 56° 56° 48° (1965) 58°

    Sunrise/Sunset

    • Sunrise: 6:56 AM
    • Sunset: 7:10 PM
    • Duration: 12:14 hr

    Moonrise/Moonset

    • Moonrise: 7:19 AM
    • Moonset: 7:47 PM
    • Duration: 12:28 hr
    Astronomy

    Wed. Pollen

    Wed. Dust & Dander

    Wed. Wind Maps