Cook Middle Reservoir Weather Forecast

    • 51
    • 82

    Mostly Sunny

    • 55
    • 80

    Chance Rain Showers

    • 51
    • 76

    Chance Thunderstorms

    • 48
    • 68

    Partly Sunny

    • 48
    • 71

    Partly Sunny

    • 47
    • 69

    Mostly Sunny

Today 26 Sep Box Butte

Sunny, warmer with Highs around 80. West Winds 10 to 15 Mph, becoming north this afternoon.

Tonight 26 Sep Box Butte

Mostly clear. Lows in the lower 50s. East Winds 5 to 10 Mph, becoming southeast after midnight.

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Cook Middle Reservoir Temperature Statistics

September Temperature

Scottsbluff, Heilig Field (21.7 miles)

  • Lowest 10 September, 2026

    44.7 °F

  • Average September

    69.7 °F

  • Highest 5 September, 2026

    98.7 °F

Climate (2021–2026)

Scottsbluff, Heilig Field (21.7 miles)

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  • Average Low 2021–2026

    37 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    67.2 °F
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