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    • Tonight

      Sep 25

      59° Lo F
      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
    • 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
    Sunday
    8pm
    9pm
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    12am
    1am
    2am
    3am
    Forecast Clear Clear Clear Clear Clear Clear Clear Clear
    Temp (°F) 78° 76° 73° 71° 69° 67° 65° 64°
    RealFeel® 76° 74° 71° 69° 67° 66° 64° 64°
    Wind (mph) 6 W 5 W 4 W 4 W 2 W 2 WNW 2 NW 2 NNW
    precip
    8pm
    9pm
    10pm
    11pm
    12am
    1am
    2am
    3am
    Rain
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    8pm
    9pm
    10pm
    11pm
    12am
    1am
    2am
    3am
    UV Index 0 0 0 0 0 0 0 0
    Cloud Cover 0% 0% 0% 0% 0% 0% 0% 0%
    Humidity 31% 32% 37% 42% 43% 50% 53% 52%
    Dew Point 46° 44° 46° 47° 46° 48° 48° 46°
    Temp °F
    8pm
    9pm
    10pm
    11pm
    12am
    1am
    2am
    3am
    80° 75° 70° 65° 60°

    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: 1:49 AM
    • Moonset: 4:06 PM
    • Duration: 14:17 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