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    • Today

      Sep 25

      99° /59°F
      Sizzling sunshine
      • 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
    • Mon

      Sep 26

      97° /58°
      Sunny and very hot
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More
    • Tue

      Sep 27

      93° /52°
      Mostly sunny and hot
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More
    • Wed

      Sep 28

      83° /51°
      Not as hot with sunshine
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More
    • Thu

      Sep 29

      81° /49°
      Sunny and pleasant
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    93°/55° RealFeel® 96°/59°
    Blazing sunshine
    • 5 mph
    • Precipitation: 0%
    • Rain: 0 in
    • Snow: 0 in
    • Humidity: 46%
    • Cloud Cover: 0%
    • Dew Point: 49° F
    • Visibility: 10 mi

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/25/2015
    High 99° 82° 101° (1960) 90°
    Low 59° 52° 39° (1948) 54°

    Sunrise/Sunset

    • Sunrise: 7:00 AM
    • Sunset: 7:00 PM
    • Duration: 12:00 hr

    Moonrise/Moonset

    • Moonrise: 1:50 AM
    • Moonset: 4:06 PM
    • Duration: 14:16 hr
    Astronomy

    Napa Weather Report

    Northern California towns in danger of running out of water for 3rd year in a row

    September 25, 2016; 3:11 AM ET

    For the third year in a row, some communities in northern California may run out of water due to the extreme drought conditions gripping the state. More >

    Sun. Pollen

    Sun. Dust & Dander

    Sun. Wind Maps