Mare Island Shoreline Heritage Preserve Weather Forecast

    • 55
    • 68

    Increasing Clouds

    • 56
    • 63

    Partly Sunny

    • 57
    • 63

    Partly Sunny

    • 57
    • 69

    Partly Sunny

    • 57
    • 69

    Partly Sunny

    • 58
    • 70

    Mostly Sunny

Today 30 Aug Southwestern Solano County Including Vallejo

Sunny. Highs 73 to 83. Southwest Winds 10 to 15 Mph.

Tonight 30 Aug Southwestern Solano County Including Vallejo

Clear. Lows around 56. Southwest Winds 10 to 15 Mph with Gusts to around 25 Mph.

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  • Temperature Real-Time

Mare Island Shoreline Heritage Preserve Temperature Statistics

August Temperature

Napa, Napa County Airport (8.7 miles)

  • Lowest 22 August, 2026

    50.6 °F

  • Average August

    66.4 °F

  • Highest 2 August, 2026

    86.6 °F

Climate (2021–2026)

Napa, Napa County Airport (8.7 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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