Steamboat Lake Weather Forecast

    • 40
    • 54

    Breezy

    • 36
    • 55

    Breezy

    • 40
    • 58

    Mostly Cloudy

    • 40
    • 56

    Chance Rain Showers

    • 36
    • 55

    Slight Chance Rain Showers

    • 29
    • 51

    Slight Chance Rain/Snow

Today 21 Dec Green Mountains and Rattlesnake Range

Partly cloudy. Scattered snow Showers in the Morning, then scattered rain Showers in the afternoon. Windy with Highs in the upper 40s. Southwest Winds 20 to 30 Mph. Gusts up to 40 Mph, increasing to 55 Mph in the afternoon. Chance of precipitation 30 percent.

Tonight 21 Dec Green Mountains and Rattlesnake Range

Mostly cloudy and breezy. Near steady temperature in the upper 20s. Southwest Winds 15 to 20 Mph with Gusts up to 35 Mph.

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Steamboat Lake Temperature Statistics

December Temperature

Casper, Natrona County International Airport (38.5 miles)

  • Lowest 1 December, 2025

    6.1 °F

  • Average December

    37.2 °F

  • Highest 14 December, 2025

    59 °F

Climate (2020–Present)

Casper, Natrona County International Airport (38.5 miles)

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  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    46.9 °F

  • Average High 2020–2025

    60.5 °F
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