Cloud Peak Reservoir Weather Forecast

    • 20
    • 38

    Chance Snow Showers

    • 23
    • 44

    Snow Showers

    • 21
    • 38

    Snow Showers

    • 25
    • 46

    Chance Snow Showers

    • 31
    • 51

    Breezy

    • 34
    • 55

    Slight Chance Thunderstorms

Today 19 May Bighorn Mountains Southeast

Mostly sunny. Highs in the mid 40s. West Winds around 10 Mph.

Tonight 19 May Bighorn Mountains Southeast

Mostly clear. Lows in the upper 20s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cloud Peak Reservoir Temperature Statistics

May Temperature

Buffalo - Johnson County Airport (18.6 miles)

  • Lowest 6 May, 2026

    21.7 °F

  • Average May

    52.6 °F

  • Highest 13 May, 2026

    93.7 °F

Climate (2021–Present)

Buffalo - Johnson County Airport (18.6 miles)

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  • Average Low 2021–2026

    36.9 °F

  • Average 2021–2026

    48.3 °F

  • Average High 2021–2026

    59.6 °F
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