Cook Middle Reservoir Weather Forecast

    • 55
    • 76

    Chance Thunderstorms

    • 53
    • 82

    Chance Rain Showers

    • 51
    • 77

    Rain Showers

    • 47
    • 72

    Rain Showers Likely

    • 49
    • 73

    Slight Chance Thunderstorms

    • 50
    • 77

    Slight Chance Thunderstorms

Today 17 Sep Box Butte

Mostly cloudy. Patchy fog in the morning. Isolated Showers in the Morning, then numerous Showers and scattered Thunderstorms in the afternoon. Some Thunderstorms may produce heavy rainfall in the afternoon. Highs in the mid 70s. East Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

Tonight 17 Sep Box Butte

Mostly cloudy. Showers and scattered Thunderstorms in the evening. Patchy fog after midnight. Some Thunderstorms may produce heavy rainfall in the evening. Lows in the mid 50s. East Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming northeast 5 to 10 Mph after midnight. Chance of rain 90 percent.

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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

    72.5 °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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