Mare Island Strait - Ernest D. Wichels Memorial Causeway Weather Forecast

    • 53
    • 63

    Mostly Sunny

    • 51
    • 62

    Breezy

    • 55
    • 66

    Sunny

    • 54
    • 67

    Mostly Sunny

    • 54
    • 68

    Mostly Sunny

    • 54
    • 64

    Mostly Sunny

Today 19 Jun Carquinez Strait and Delta

Sunny. Not as warm. Highs 76 to 82. Southwest Winds 10 to 20 Mph with Gusts to around 30 Mph.

Tonight 19 Jun Carquinez Strait and Delta

Clear, breezy. Lows around 52. Southwest Winds 15 to 25 Mph decreasing to 10 to 15 Mph after midnight. Gusts up to 35 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mare Island Strait - Ernest D. Wichels Memorial Causeway Temperature Statistics

June Temperature

Napa, Napa County Airport (6.2 miles)

  • Lowest 12 June, 2025

    44.1 °F

  • Average June

    61.9 °F

  • Highest 17 June, 2025

    78.1 °F

Climate (2020–Present)

Napa, Napa County Airport (6.2 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.6 °F
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