Grand Blanc Weather Forecast

    • 58
    • 84

    Slight Chance Thunderstorms

    • 52
    • 76

    Partly Sunny

    • 56
    • 77

    Partly Sunny

    • 61
    • 83

    Chance Rain Showers

    • 60
    • 79

    Chance Rain Showers

    • 57
    • 79

    Chance Rain Showers

Today 18 Sep Genesee

Mostly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the mid 80s. Northwest Winds up to 10 Mph. Chance of rain 20 percent.

Tonight 18 Sep Genesee

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 50s. Northeast Winds up to 5 Mph.

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Grand Blanc Temperature Statistics

September Temperature

Flint, Bishop International Airport (6.2 miles)

  • Lowest 7 September, 2025

    36 °F

  • Average September

    60.9 °F

  • Highest 14 September, 2025

    82 °F

Climate (2020–Present)

Flint, Bishop International Airport (6.2 miles)

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  • Average Low 2020–2025

    41.2 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    60.1 °F
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