Casper Mountain County Park Weather Forecast

    • 21
    • 24

    Chance Snow Showers

    • 18
    • 28

    Chance Snow Showers

    • 23
    • 25

    Partly Sunny

    • 27
    • 29

    Blustery

    • 23
    • 34

    Chance Snow Showers

    • 27
    • 31

    Chance Snow Showers

Today 5 Dec Casper Mountain

Cloudy with a chance of snow Showers in the Morning, then partly cloudy in the afternoon. Highs in the mid 20s. West Winds 10 to 15 Mph. Gusts up to 30 Mph in the morning. Chance of snow 40 percent.

Tonight 5 Dec Casper Mountain

Cloudy with a 50 percent chance of snow Showers. Snow accumulation up to 1 inch. Breezy, cold. Near steady temperature in the lower 20s. Southwest Winds 15 to 20 Mph with Gusts up to 35 Mph.

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Casper Mountain County Park Temperature Statistics

December Temperature

Casper, Natrona County International Airport (13.7 miles)

  • Lowest 1 December, 2025

    6.1 °F

  • Average December

    26.3 °F

  • Highest 2 December, 2025

    37.9 °F

Climate (2020–Present)

Casper, Natrona County International Airport (13.7 miles)

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  • Average Low 2020–2025

    32.8 °F

  • Average 2020–2025

    46.8 °F

  • Average High 2020–2025

    60.4 °F
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