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    • Early AM

      Sep 27

      56° Lo
      Mainly clear
      • 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: Moderate
      More
    • Today

      Sep 27

      77° /56°F
      Mostly sunny and not as warm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Wed

      Sep 28

      69° /55°
      Low clouds and fog, then sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Sep 29

      66° /54°
      Fog giving way to sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More
    • Fri

      Sep 30

      66° /55°
      Low clouds, then sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    77°Hi RealFeel® 81° Precipitation 1%
    Mostly sunny and not as warm
    • WSW 6 mph
    • Gusts: 13 mph
    • Max UV Index: 6 (High)
    • Thunderstorms: 4%
    • 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® 54° Precipitation 2%
    Mainly clear early, then areas of low clouds forming
    • SW 6 mph
    • Gusts: 10 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 Francisco Pollen Levels Sep 27

    • 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 9/27/2015
    High 77° 70° 93° (2010) 68°
    Low 56° 55° 48° (1955) 57°

    Sunrise/Sunset

    • Sunrise: 7:02 AM
    • Sunset: 6:58 PM
    • Duration: 11:56 hr

    Moonrise/Moonset

    • Moonrise: 3:50 AM
    • Moonset: 5:24 PM
    • Duration: 13:34 hr
    Astronomy

    Tue. Pollen

    Tue. Dust & Dander

    Tue. Wind Maps