Colwell Reservoir Weather Forecast

    • 25
    • 52

    Becoming Sunny

    • 42
    • 70

    Breezy

    • 33
    • 57

    Breezy

    • 32
    • 59

    Mostly Sunny

    • 39
    • 66

    Partly Sunny

    • 35
    • 65

    Partly Sunny

    • 42
    • 67

    Mostly Sunny

Today 18 Oct Sheridan

Windy. Mostly sunny. A slight chance of Showers in the morning. Highs around 50. Northwest Winds 15 to 30 Mph. Chance of precipitation 20 percent.

Tonight 18 Oct Sheridan

Mostly clear. Widespread frost after midnight. Lows in the mid 20s. Northwest Winds around 10 Mph, becoming southwest after midnight.

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Colwell Reservoir Temperature Statistics

October Temperature

Pine Ridge, Pine Ridge Airport (9.9 miles)

  • Lowest 13 October, 2025

    25 °F

  • Average October

    57.6 °F

  • Highest 3 October, 2025

    93 °F

Climate (2020–Present)

Pine Ridge, Pine Ridge Airport (9.9 miles)

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  • Average Low 2020–2025

    34.4 °F

  • Average 2020–2025

    48.8 °F

  • Average High 2020–2025

    62.9 °F
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