Mare Island Shoreline Heritage Preserve Weather Forecast

    • 56
    • 71

    Increasing Clouds

    • 56
    • 65

    Chance Rain Showers

    • 54
    • 61

    Rain Showers

    • 48
    • 61

    Rain Showers Likely

    • 46
    • 56

    Rain Likely

    • 47
    • 61

    Mostly Sunny

    • 50
    • 64

    Mostly Sunny

Today 8 Apr Carquinez Strait and Delta

Sunny. Highs 76 to 82. West Winds up to 10 Mph with Gusts to around 20 Mph.

Tonight 8 Apr Carquinez Strait and Delta

Mostly clear. Near the Bay, mostly clear in the evening then becoming mostly cloudy. Lows around 54. West Winds up to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mare Island Shoreline Heritage Preserve Temperature Statistics

April Temperature

Napa, Napa County Airport (8.7 miles)

  • Lowest 3 April, 2026

    38.6 °F

  • Average April

    59 °F

  • Highest 5 April, 2026

    82 °F

Climate (2021–Present)

Napa, Napa County Airport (8.7 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    70.3 °F
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