Cook Middle Reservoir Weather Forecast

    • 49
    • 70

    Mostly Cloudy

    • 47
    • 72

    Chance Rain Showers

    • 43
    • 67

    Mostly Sunny

    • 46
    • 70

    Mostly Sunny

    • 44
    • 71

    Mostly Sunny

    • 47
    • 70

    Mostly Sunny

Today 29 Sep Box Butte

Mostly cloudy this Morning, then becoming partly sunny. Highs in the upper 60s. North Winds 5 to 10 Mph.

Tonight 29 Sep Box Butte

Partly cloudy. Lows around 50. East Winds 5 to 10 Mph, becoming north 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

    69.4 °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

    67.1 °F
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