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    • Today

      Jul 24

      71° /57°F
      Fog, then some 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: Moderate
    • Tue

      Jul 25

      72° /56°
      Areas of low clouds, then sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Jul 26

      72° /55°
      Areas of low clouds, then sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Jul 27

      75° /56°
      Mostly sunny and pleasant
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Fri

      Jul 28

      72° /56°
      Areas of low clouds, then sun
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More

    Day

    71°Hi RealFeel® 75° Precipitation 0%
    Areas of low clouds and fog early on; otherwise, partly sunny
    • Winds from the
    • WSW 9 mph
    • Gusts: 16 mph
    • Max UV Index: 8 (Very High)
    • Thunderstorms: 1%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    57°Lo RealFeel® 56° Precipitation 0%
    Mainly clear early on, then areas of low clouds forming
    • Winds from the
    • WSW 7 mph
    • Gusts: 15 mph
    • Max UV Index: N/A
    • Thunderstorms: 2%
    • 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 Jul 24

    • 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 7/24/2016
    High 71° 72° 90° (1974) 69°
    Low 57° 56° 50° (2009) 56°

    Sunrise/Sunset

    • Sunrise: 6:07 AM
    • Sunset: 8:25 PM
    • Duration: 14:18 hr

    Moonrise/Moonset

    • Moonrise: 7:35 AM
    • Moonset: 9:33 PM
    • Duration: 13:58 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps