Prospect Slough - French Island Weather Forecast

    • 52
    • 74

    Increasing Clouds

    • 54
    • 75

    Partly Sunny

    • 56
    • 78

    Mostly Sunny

    • 53
    • 79

    Partly Sunny

    • 53
    • 78

    Mostly Sunny

    • 51
    • 81

    Sunny

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Prospect Slough - French Island Temperature Statistics

May Temperature

Fairfield / Travis Air Force Base (13.7 miles)

  • Lowest 17 May, 2026

    49.5 °F

  • Average May

    65.1 °F

  • Highest 20 May, 2026

    93 °F

Climate (2021–Present)

Fairfield / Travis Air Force Base (13.7 miles)

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  • Average Low 2021–2026

    48.9 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    74.8 °F
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