Napa River - North Slough Entrance Weather Forecast

    • 52
    • 72

    Mostly Sunny

    • 51
    • 66

    Mostly Sunny

    • 54
    • 66

    Partly Sunny

    • 51
    • 62

    Partly Sunny

    • 54
    • 68

    Mostly Sunny

    • 53
    • 71

    Mostly Sunny

    • 53
    • 68

    Mostly Sunny

Today 30 Apr North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the mid 60s to lower 80s. South Winds 5 to 10 Mph.

Tonight 30 Apr North Bay Interior Valleys

Mostly clear except patchy fog after midnight. Lows in the 40s to mid 50s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Napa River - North Slough Entrance Temperature Statistics

April Temperature

Napa, Napa County Airport (2.5 miles)

  • Lowest 2 April, 2025

    35.7 °F

  • Average April

    56.2 °F

  • Highest 9 April, 2025

    77.6 °F

Climate (2020–Present)

Napa, Napa County Airport (2.5 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    58.2 °F

  • Average High 2020–2025

    70.7 °F
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