Hill Slough - Deadman Island Weather Forecast

    • 59
    • 90

    Mostly Sunny

    • 60
    • 88

    Mostly Sunny

    • 56
    • 82

    Mostly Sunny

    • 55
    • 81

    Mostly Sunny

    • 55
    • 76

    Mostly Sunny

Today 23 Sep Southwestern Solano County Including Vallejo

Sunny, warmer. Highs 81 to 91. Light Winds.

Tonight 23 Sep Southwestern Solano County Including Vallejo

Clear. Lows around 59. West Winds up to 10 Mph.

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Hill Slough - Deadman Island Temperature Statistics

September Temperature

Fairfield / Travis Air Force Base (5 miles)

  • Lowest 8 September, 2026

    49.6 °F

  • Average September

    69.4 °F

  • Highest 10 September, 2026

    104.7 °F

Climate (2021–2026)

Fairfield / Travis Air Force Base (5 miles)

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  • Average Low 2021–2026

    48.9 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    74.6 °F
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