Six Flags - Discovery Kingdom Weather Forecast

    • 57
    • 82

    Mostly Sunny

    • 56
    • 76

    Mostly Sunny

    • 57
    • 72

    Partly Sunny

    • 57
    • 74

    Mostly Sunny

    • 57
    • 79

    Mostly Sunny

    • 56
    • 78

    Partly Sunny

Today 14 Sep Southwestern Solano County Including Vallejo

Sunny, warmer. Highs 79 to 89. West Winds 10 to 15 Mph.

Tonight 14 Sep Southwestern Solano County Including Vallejo

Clear. Lows around 57. Southwest Winds 10 to 15 Mph.

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Six Flags - Discovery Kingdom Temperature Statistics

September Temperature

Napa, Napa County Airport (5 miles)

  • Lowest 6 September, 2026

    45.6 °F

  • Average September

    67.4 °F

  • Highest 9 September, 2026

    99.6 °F

Climate (2021–2026)

Napa, Napa County Airport (5 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    70.3 °F
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