Third Napa Slough Weather Forecast

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    Rain

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    Rain

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    Rain

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    Chance Rain

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    Rain

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    Rain Likely

Today 12 Mar North Bay Interior Valleys

Very windy. Rain in the Morning, then Showers in the afternoon. Highs in the 50s. South Winds 20 to 30 Mph increasing to 30 to 45 Mph in the afternoon. Gusts up to 60 Mph.

Tonight 12 Mar North Bay Interior Valleys

Breezy. Showers in the evening. A slight chance of Thunderstorms. Showers likely after midnight. Patchy fog after midnight. Lows in the 30s to mid 40s. Southwest Winds 20 to 30 Mph decreasing to 10 to 20 Mph after midnight.

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Third Napa Slough Temperature Statistics

March Temperature

Napa, Napa County Airport (6.2 miles)

  • Lowest 7 March, 2025

    33.7 °F

  • Average March

    50.6 °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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