Napa Weather Forecast

    • 38
    • 56

    Rain

    • 39
    • 58

    Rain

    • 43
    • 60

    Chance Rain

    • 44
    • 61

    Rain

    • 36
    • 60

    Rain Likely

    • 38
    • 63

    Mostly Sunny

Today 13 Mar North Bay Interior Valleys

Mostly cloudy in the morning then becoming partly cloudy. A chance of Showers and a slight chance of Thunderstorms in the Morning, then a slight chance of Showers in the afternoon. Some Thunderstorms may produce small hail in the morning. Highs in the 50s. West Winds 10 to 20 Mph with Gusts to around 35 Mph.

Tonight 13 Mar North Bay Interior Valleys

Showers and a slight chance of Thunderstorms. Some Thunderstorms may produce small hail. Lows in the upper 30s to mid 40s. Southwest Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Napa Temperature Statistics

March Temperature

Napa, Napa County Airport (6.2 miles)

  • Lowest 7 March, 2025

    33.7 °F

  • Average March

    50.7 °F

  • Highest 7 March, 2025

    68.6 °F

Climate (2020–Present)

Napa, Napa County Airport (6.2 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.6 °F
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