Cook Middle Reservoir Weather Forecast

    • 29
    • 41

    Decreasing Clouds

    • 36
    • 59

    Partly Sunny

    • 38
    • 61

    Chance Rain Showers

    • 39
    • 69

    Chance Thunderstorms

    • 39
    • 70

    Chance Rain Showers

    • 44
    • 78

    Partly Sunny

    • 47
    • 85

    Mostly Sunny

Today 18 May Box Butte

Rain Showers, a slight chance of Thunderstorms and snow Showers. Much cooler. Near steady temperature in the upper 30s. North Winds around 20 Mph with Gusts up to 30 Mph. Chance of precipitation near 100 percent.

Tonight 18 May Box Butte

Mostly cloudy. A chance of rain Showers in the evening. Widespread frost after midnight. Cold with Lows in the upper 20s. North Winds 15 to 20 Mph with Gusts up to 30 Mph, becoming northwest 5 to 10 Mph after midnight. Chance of rain 40 percent.

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Cook Middle Reservoir Temperature Statistics

May Temperature

Scottsbluff, Heilig Field (21.7 miles)

  • Lowest 1 May, 2026

    27.6 °F

  • Average May

    58.5 °F

  • Highest 13 May, 2026

    92.6 °F

Climate (2021–Present)

Scottsbluff, Heilig Field (21.7 miles)

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  • Average Low 2021–2026

    37 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    67.2 °F
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