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    • Early AM

      Aug 20

      54° Lo
      Cloudy
      • 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

      Aug 20

      77° /55°
      Low clouds followed by sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Aug 21

      77° /57°F
      Low clouds, then sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Tue

      Aug 22

      77° /53°
      Low clouds, then sunshine
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Wed

      Aug 23

      79° /53°
      Clouds, then sun
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More

    Day

    77°Hi RealFeel® 83° Precipitation 0%
    Cool with low clouds followed by sunshine
    • Winds from the
    • WSW 8 mph
    • Gusts: 13 mph
    • Max UV Index: 10 (Extreme)
    • Thunderstorms: 2%
    • 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® 57° Precipitation 5%
    Mainly clear in the evening followed by late-night low clouds
    • Winds from the
    • W 5 mph
    • Gusts: 10 mph
    • Max UV Index: N/A
    • Thunderstorms: 3%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Santa Rosa Pollen Levels Aug 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 8/21/2016
    High 77° 84° 102° (1964) 79°
    Low 57° 51° 41° (1947) 54°

    Sunrise/Sunset

    • Sunrise: 6:30 AM
    • Sunset: 7:57 PM
    • Duration: 13:27 hr

    Moonrise/Moonset

    • Moonrise: 6:21 AM
    • Moonset: 8:07 PM
    • Duration: 13:46 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps