Park Reservoir Weather Forecast

    • 35
    • 40

    Snow Likely

    • 22
    • 42

    Snow Likely

    • 18
    • 32

    Chance Snow

    • 21
    • 29

    Partly Sunny

    • 24
    • 43

    Partly Sunny

    • 27
    • 40

    Partly Sunny

Today 10 Dec Northeast Bighorn Mountains

Snow in the Morning, then snow likely and chance of rain in the afternoon. Patchy blowing snow late in the morning. Snow accumulation around 1 inch. Highs around 40. West Winds 10 to 20 Mph. Chance of precipitation 80 percent.

Tonight 10 Dec Northeast Bighorn Mountains

Mostly cloudy. Warmer. Chance of rain in the evening. Slight chance of snow through the night. Slight chance of rain overnight. Lows in the lower 30s. Southwest Winds 15 to 25 Mph. Chance of precipitation 30 percent.

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Park Reservoir Temperature Statistics

December Temperature

Sheridan County Airport (18 miles)

  • Lowest 1 December, 2025

    1.9 °F

  • Average December

    29.4 °F

  • Highest 7 December, 2025

    43 °F

Climate (2020–Present)

Sheridan County Airport (18 miles)

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  • Average Low 2020–2025

    33.2 °F

  • Average 2020–2025

    47.2 °F

  • Average High 2020–2025

    61.5 °F
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