Cook Middle Reservoir Weather Forecast

    • 49
    • 85

    Chance Rain Showers

    • 50
    • 71

    Partly Sunny

    • 54
    • 84

    Chance Thunderstorms

    • 53
    • 74

    Chance Rain Showers

    • 50
    • 78

    Slight Chance Thunderstorms

    • 48
    • 74

    Mostly Sunny

Today 14 Sep Box Butte

Mostly cloudy with a slight chance of Showers in the Morning, then sunny in the afternoon. Breezy and less humid with Highs in the mid 80s. Southwest Winds 15 to 20 Mph, becoming west 15 to 25 Mph in the afternoon. Gusts up to 40 Mph. Chance of rain 20 percent.

Tonight 14 Sep Box Butte

Cloudy with a chance of Showers with a slight chance of Thunderstorms. Breezy. Near steady temperature around 60. South Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of rain 40 percent.

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Cook Middle Reservoir Temperature Statistics

September Temperature

Scottsbluff, Heilig Field (21.7 miles)

  • Lowest 10 September, 2026

    46.9 °F

  • Average September

    74.2 °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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