Spartan State Wildlife Management Area Weather Forecast

    • 62
    • 71

    Rain Showers Likely

    • 59
    • 69

    Rain Showers

    • 53
    • 71

    Chance Rain Showers

    • 44
    • 63

    Mostly Sunny

    • 47
    • 63

    Mostly Sunny

    • 49
    • 63

    Partly Sunny

Today 28 Sep Chippewa

Mostly cloudy. Highs around 70. South Winds 5 to 10 Mph.

Tonight 28 Sep Chippewa

Cloudy. A 20 percent chance of Thunderstorms after midnight. Lows in the lower 60s. South 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 16 September, 2026

    44.6 °F

  • Average September

    66.1 °F

  • Highest 3 September, 2026

    92.8 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    37.5 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    58.4 °F
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