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    • Today

      Sep 30

      73° /46°
      Sunny to partly cloudy
      • Beneficial
      • weather for sinus headaches
      • Hi RealFeel: 72°
      • UV: 4 - Moderate
      • Cloud Cover: 22%
      More
    • Sat

      Oct 1

      74° /47°F
      Low clouds, then sunshine
      • Beneficial
      • weather for sinus headaches
      • Hi RealFeel: 76°
      • UV: 4 - Moderate
      • Cloud Cover: 54%
    • Sun

      Oct 2

      67° /44°
      A stray afternoon shower
      • Neutral
      • weather for sinus headaches
      • Hi RealFeel: 65°
      • UV: 4 - Moderate
      • Cloud Cover: 76%
      More
    • Mon

      Oct 3

      66° /49°
      Cool with clouds and sun
      • Neutral
      • weather for sinus headaches
      • Hi RealFeel: 69°
      • UV: 4 - Moderate
      • Cloud Cover: 70%
      More
    • Tue

      Oct 4

      72° /47°
      Cool with periods of sun
      • Neutral
      • weather for sinus headaches
      • Hi RealFeel: 76°
      • UV: 4 - Moderate
      • Cloud Cover: 52%
      More

    Day

    74°Hi RealFeel® 76° Precipitation 11%
    Low clouds followed by sunshine and cool
    • WNW 7 mph
    • Gusts: 15 mph
    • Max UV Index: 4 (Moderate)
    • Thunderstorms: 3%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    47°Lo RealFeel® 45° Precipitation 12%
    Cool; mainly clear in the evening, becoming cloudy late
    • W 5 mph
    • Gusts: 10 mph
    • Max UV Index: N/A
    • Thunderstorms: 7%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/1/2015
    High 74° 81° 106° (1980) 77°
    Low 47° 51° 36° (1950) 58°

    Sunrise/Sunset

    • Sunrise: 7:06 AM
    • Sunset: 6:50 PM
    • Duration: 11:44 hr

    Moonrise/Moonset

    • Moonrise: 7:39 AM
    • Moonset: 7:31 PM
    • Duration: 11:52 hr
    Astronomy

    Napa Weather Report

    Cooler air, showers to aid in wildfire efforts across California this weekend

    September 30, 2016; 11:54 AM ET

    Improving weather over the next several days will aid officials in battling wildfires across California. More >

    Sat. Sinus Headache

    Sat. UV Index