Napa River - Napa Weather Forecast

    • 54
    • 87

    Mostly Sunny

    • 54
    • 84

    Mostly Sunny

    • 53
    • 84

    Mostly Sunny

    • 54
    • 84

    Mostly Sunny

    • 54
    • 80

    Partly Sunny

    • 53
    • 76

    Partly Sunny

Today 13 Jun North Bay Interior Valleys

Sunny. Highs in the mid 70s to lower 90s. South Winds 5 to 10 Mph. Becoming southwest 10 to 20 Mph in the afternoon.

Tonight 13 Jun North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Lows in the 50s. Southwest Winds 5 to 15 Mph.

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Napa River - Napa Temperature Statistics

June Temperature

Napa, Napa County Airport (5.6 miles)

  • Lowest 7 June, 2026

    45.6 °F

  • Average June

    66.5 °F

  • Highest 11 June, 2026

    95 °F

Climate (2021–Present)

Napa, Napa County Airport (5.6 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    70.2 °F
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