Park Reservoir Weather Forecast

    • 36
    • 50

    Increasing Clouds

    • 34
    • 45

    Chance Rain/Snow

    • 29
    • 44

    Rain/Snow

    • 26
    • 31

    Snow Showers

    • 29
    • 43

    Partly Sunny

    • 29
    • 41

    Partly Sunny

    • 30
    • 42

    Partly Sunny

Today 30 Oct Northeast Bighorn Mountains

Mostly sunny. Highs in the mid 40s.

Tonight 30 Oct Northeast Bighorn Mountains

Mostly cloudy. A 20 percent chance of rain and snow Showers after 3 am. Lows in the lower 30s. South Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Park Reservoir Temperature Statistics

October Temperature

Sheridan County Airport (18 miles)

  • Lowest 16 October, 2026

    18.6 °F

  • Average October

    51.9 °F

  • Highest 5 October, 2026

    92.6 °F

Climate (2021–2026)

Sheridan County Airport (18 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    62.3 °F
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