Cook Lake Weather Forecast

    • 49
    • 76

    Mostly Sunny

    • 54
    • 75

    Mostly Sunny

    • 57
    • 85

    Mostly Sunny

    • 48
    • 78

    Partly Sunny

    • 47
    • 72

    Partly Sunny

    • 46
    • 67

    Chance Rain Showers

Today 8 Sep Wyoming Black Hills

Sunny. Highs in the mid 70s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 8 Sep Wyoming Black Hills

Clear. Lows in the lower 50s. North Winds 5 to 10 Mph.

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Cook Lake Temperature Statistics

September Temperature

Hulett Municipal Airport (8.7 miles)

  • Lowest 2 September, 2026

    53.6 °F

  • Average September

    74.9 °F

  • Highest 4 September, 2026

    96.8 °F

Climate (2021–2026)

Hulett Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    37.3 °F

  • Average 2021–2026

    48.9 °F

  • Average High 2021–2026

    60.3 °F
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