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    • Today

      Feb 19

      57° /54°F
      Occasional rain and drizzle
      • 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
    • Mon

      Feb 20

      60° /49°
      Breezy with heavy rain
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Feb 21

      59° /41°
      Rather cloudy, showers around
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Feb 22

      57° /35°
      Mostly cloudy, showers around
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Feb 23

      57° /34°
      Partly sunny and cool
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    57°Hi RealFeel® 60° Precipitation 70%
    Occasional rain and drizzle; breezy this afternoon
    • SE 10 mph
    • Gusts: 37 mph
    • Max UV Index: 1 (Low)
    • Thunderstorms: 2%
    • Precipitation: 0.13 in
    • Rain: 0.13 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 2.5 hrs
    • Hours of Rain: 2.5 hrs

    Night

    54°Lo RealFeel® 45° Precipitation 82%
    Increasingly windy with occasional rain followed by a steadier, heavier rain; watch for flooding
    • SE 15 mph
    • Gusts: 30 mph
    • Max UV Index: N/A
    • Thunderstorms: 6%
    • Precipitation: 0.96 in
    • Rain: 0.96 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 10 hrs
    • Hours of Rain: 10 hrs

    Napa Pollen Levels Feb 19

    • 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 2/19/2016
    High 57° 63° 80° (1964) 58°
    Low 54° 42° 29° (1990) 44°

    Sunrise/Sunset

    • Sunrise: 6:55 AM
    • Sunset: 5:51 PM
    • Duration: 10:56 hr

    Moonrise/Moonset

    • Moonrise: 1:31 AM
    • Moonset: 11:59 AM
    • Duration: 10:28 hr
    Astronomy

    Sun. Pollen

    Sun. Dust & Dander

    Sun. Wind Maps