Spartan State Wildlife Management Area Weather Forecast

    • 66
    • 89

    Chance Thunderstorms

    • 65
    • 86

    Mostly Sunny

    • 62
    • 89

    Chance Thunderstorms

    • 61
    • 79

    Chance Thunderstorms

    • 59
    • 73

    Chance Thunderstorms

    • 56
    • 72

    Chance Rain Showers

    • 56
    • 71

    Mostly Cloudy

Today 14 Sep Chippewa

Mostly sunny. Near steady temperature in the mid 80s. South Winds 10 to 15 Mph.

Tonight 14 Sep Chippewa

Mostly cloudy with a 20 percent chance of Thunderstorms in the late evening and early Morning, then partly cloudy early in the morning. Lows in the mid 60s. Southeast Winds 5 to 10 Mph.

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Spartan State Wildlife Management Area Temperature Statistics

September Temperature

Granite Falls, Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (7.5 miles)

  • Lowest 7 September, 2025

    37.4 °F

  • Average September

    61.7 °F

  • Highest 1 September, 2025

    82.4 °F

Climate (2020–Present)

Granite Falls, Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (7.5 miles)

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  • Average Low 2020–2025

    36.9 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    57.9 °F
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