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    • Today

      Dec 4

      63° /41°
      Sun and some clouds
      • 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: Low
      More
    • Mon

      Dec 5

      59° /36°F
      Partial sunshine
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Tue

      Dec 6

      57° /32°
      Mostly sunny
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Dec 7

      56° /42°
      Mostly sunny
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Dec 8

      51° /47°
      A couple of afternoon showers
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    59°Hi RealFeel® 59° Precipitation 2%
    Partial sunshine
    • NW 7 mph
    • Gusts: 9 mph
    • Max UV Index: 2 (Low)
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    36°Lo RealFeel® 32° Precipitation 3%
    Mainly clear and cold; freezing temperatures in the normally colder spots
    • WNW 6 mph
    • Gusts: 9 mph
    • Max UV Index: N/A
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Napa Pollen Levels Dec 5

    • Extreme
    • Very High
    • High
    • Moderate
    • Low
    • Tree Pollen

      Low

    • Ragweed Pollen

      Low

    • Mold

      High

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 12/5/2015
    High 59° 58° 76° (1959) 57°
    Low 36° 40° 25° (2013) 36°

    Sunrise/Sunset

    • Sunrise: 7:12 AM
    • Sunset: 4:48 PM
    • Duration: 9:36 hr

    Moonrise/Moonset

    • Moonrise: 11:38 AM
    • Moonset: 10:44 PM
    • Duration: 11:06 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps