Grizzly Bay - Suisun Slough Entrance Weather Forecast

    • 59
    • 83

    Sunny

    • 60
    • 86

    Mostly Sunny

    • 59
    • 78

    Mostly Cloudy

    • 59
    • 79

    Mostly Sunny

    • 60
    • 82

    Mostly Sunny

    • 63
    • 92

    Mostly Sunny

    • 63
    • 91

    Mostly Sunny

Today 18 Sep Southwestern Solano County Including Vallejo

Sunny, warmer. Highs 76 to 85. West Winds up to 10 Mph with Gusts to around 20 Mph.

Tonight 18 Sep Southwestern Solano County Including Vallejo

Clear. Lows around 58. Southwest Winds 10 to 15 Mph.

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Grizzly Bay - Suisun Slough Entrance Temperature Statistics

September Temperature

Concord, Buchanan Field (8.7 miles)

  • Lowest 7 September, 2026

    54.6 °F

  • Average September

    72.3 °F

  • Highest 9 September, 2026

    101.6 °F

Climate (2021–2026)

Concord, Buchanan Field (8.7 miles)

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  • Average Low 2021–2026

    51.1 °F

  • Average 2021–2026

    61.6 °F

  • Average High 2021–2026

    74.2 °F
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