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    • Today

      Jul 23

      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: Low
    • Mon

      Jul 24

      71° /57°
      Clouds, then sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • 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
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Thu

      Jul 27

      74° /56°
      Mostly sunny and pleasant
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More

    Day

    71°Hi RealFeel® 76° Precipitation 1%
    Areas of low clouds and fog early on; otherwise, partly sunny
    • Winds from the
    • W 13 mph
    • Gusts: 21 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 1%
    Mainly clear early on, then areas of low clouds and fog
    • 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 23

    • 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 7/23/2016
    High 71° 72° 89° (2005) 72°
    Low 57° 56° 50° (1981) 56°

    Sunrise/Sunset

    • Sunrise: 6:06 AM
    • Sunset: 8:26 PM
    • Duration: 14:20 hr

    Moonrise/Moonset

    • Moonrise: 6:27 AM
    • Moonset: 8:48 PM
    • Duration: 14:21 hr
    Astronomy

    Sun. Pollen

    Sun. Dust & Dander

    Sun. Wind Maps