Napa River - Mud Slough Entrance Weather Forecast

    • 48
    • 80

    Decreasing Clouds

    • 49
    • 75

    Mostly Sunny

    • 52
    • 81

    Partly Sunny

    • 52
    • 71

    Mostly Cloudy

    • 50
    • 63

    Chance Rain

    • 46
    • 61

    Chance Rain

Today 27 Mar North Bay Interior Valleys

Mostly cloudy in the morning then becoming partly cloudy. Highs in the 70s to mid 80s. Northeast Winds 5 to 10 Mph. Becoming southwest in the afternoon.

Tonight 27 Mar North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly clear. Lows in the 40s to 50s. West Winds 5 to 10 Mph.

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  • Temperature Real-Time

Napa River - Mud Slough Entrance Temperature Statistics

March Temperature

Napa, Napa County Airport (1.9 miles)

  • Lowest 5 March, 2026

    37.7 °F

  • Average March

    60.5 °F

  • Highest 20 March, 2026

    87.7 °F

Climate (2021–Present)

Napa, Napa County Airport (1.9 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    70.2 °F
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