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    • Early AM

      Jan 20

      49° Lo
      Rain, heavy at times
      • 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
    • Today

      Jan 20

      55° /48°
      Cloudy, showers; breezy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sat

      Jan 21

      56° /51°F
      Afternoon rain
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Sun

      Jan 22

      55° /45°
      Heavy rain in the morning
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Jan 23

      53° /46°
      Mostly cloudy with showers
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    56°Hi RealFeel® 53° Precipitation 65%
    Some sun, then turning cloudy with periods of rain in the afternoon
    • SW 12 mph
    • Gusts: 18 mph
    • Max UV Index: 2 (Low)
    • Thunderstorms: 4%
    • Precipitation: 0.18 in
    • Rain: 0.18 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 3 hrs
    • Hours of Rain: 3 hrs

    Night

    51°Lo RealFeel® 38° Precipitation 80%
    Breezy with rain, becoming heavy
    • S 16 mph
    • Gusts: 26 mph
    • Max UV Index: N/A
    • Thunderstorms: 2%
    • Precipitation: 0.72 in
    • Rain: 0.72 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 8.5 hrs
    • Hours of Rain: 8.5 hrs

    San Francisco Pollen Levels Jan 21

    • 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 1/21/2016
    High 56° 57° 71° (1976) 62°
    Low 51° 46° 30° (1937) 52°

    Sunrise/Sunset

    • Sunrise: 7:22 AM
    • Sunset: 5:21 PM
    • Duration: 9:59 hr

    Moonrise/Moonset

    • Moonrise: 1:52 AM
    • Moonset: 12:48 PM
    • Duration: 10:56 hr
    Astronomy

    Sat. Pollen

    Sat. Dust & Dander

    Sat. Wind Maps