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    • Today

      May 25

      69° /50°F
      Low clouds breaking
      • 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
    • Fri

      May 26

      68° /48°
      Low clouds, then sunshine
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More
    • Sat

      May 27

      72° /50°
      Clearing and delightful
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Sun

      May 28

      79° /50°
      Areas of low clouds, then sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Mon

      May 29

      82° /52°
      Becoming cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More

    Day

    69°Hi RealFeel® 69° Precipitation 6%
    Low clouds breaking for some sun and cool
    • SSW 16 mph
    • Gusts: 24 mph
    • Max UV Index: 7 (High)
    • 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

    50°Lo RealFeel® 48° Precipitation 6%
    Patchy clouds this evening; late-night low clouds
    • WSW 8 mph
    • Gusts: 15 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 May 25

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

      Moderate

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 5/25/2016
    High 69° 78° 99° (1982) 72°
    Low 50° 51° 37° (1953) 54°

    Sunrise/Sunset

    • Sunrise: 5:50 AM
    • Sunset: 8:22 PM
    • Duration: 14:32 hr

    Moonrise/Moonset

    • Moonrise: 6:04 AM
    • Moonset: 8:24 PM
    • Duration: 14:20 hr
    Astronomy

    Thu. Pollen

    Thu. Dust & Dander

    Thu. Wind Maps