River Park Weather Forecast

    • 57
    • 72

    Patchy Smoke

    • 58
    • 74

    Mostly Sunny

    • 58
    • 76

    Mostly Sunny

    • 57
    • 80

    Mostly Sunny

    • 56
    • 76

    Mostly Sunny

    • 57
    • 75

    Mostly Sunny

    • 58
    • 79

    Mostly Sunny

Today 31 Jul Southwestern Solano County Including Vallejo

Sunny. Highs 82 to 92. Southwest Winds 10 to 15 Mph.

Tonight 31 Jul Southwestern Solano County Including Vallejo

Patchy smoke until early morning. Clear. Lows 56 to 62. Southwest Winds 10 to 15 Mph.

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River Park Temperature Statistics

July Temperature

Napa, Napa County Airport (6.2 miles)

  • Lowest 11 July, 2026

    48.7 °F

  • Average July

    67 °F

  • Highest 13 July, 2026

    89.7 °F

Climate (2021–2026)

Napa, Napa County Airport (6.2 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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