Cook Lake Weather Forecast

    • 59
    • 76

    Rain Showers Likely

    • 57
    • 75

    Chance Rain Showers

    • 60
    • 72

    Rain Showers

    • 53
    • 70

    Chance Rain Showers

    • 49
    • 64

    Chance Rain Showers

    • 51
    • 66

    Mostly Cloudy

    • 52
    • 70

    Partly Sunny

Today 17 Sep Cass

Partly cloudy. Highs around 70.

Tonight 17 Sep Cass

Mostly cloudy. A slight chance of Showers this evening. Lows around 60. Northeast Winds around 5 Mph. Chance of rain 20 percent.

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Cook Lake Temperature Statistics

September Temperature

Southwest Michigan Regional Airport (18 miles)

  • Lowest 14 September, 2026

    46 °F

  • Average September

    72.4 °F

  • Highest 2 September, 2026

    95.6 °F

Climate (2021–2026)

Southwest Michigan Regional Airport (18 miles)

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  • Average Low 2021–2026

    43.2 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    60.8 °F
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