Steamboat Lake Weather Forecast

    • 41
    • 81

    Breezy

    • 48
    • 83

    Partly Sunny

    • 45
    • 83

    Breezy

    • 36
    • 73

    Breezy

    • 44
    • 75

    Slight Chance Thunderstorms

    • 41
    • 78

    Slight Chance Thunderstorms

Today 11 Sep Green Mountains and Rattlesnake Range

Partly cloudy and breezy. Highs in the mid 70s. West Winds 15 to 25 Mph. Gusts up to 40 Mph in the afternoon.

Tonight 11 Sep Green Mountains and Rattlesnake Range

Mostly cloudy. Lows in the mid 50s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Steamboat Lake Temperature Statistics

September Temperature

Casper, Natrona County International Airport (38.5 miles)

  • Lowest 8 September, 2026

    44.1 °F

  • Average September

    70.1 °F

  • Highest 5 September, 2026

    91.7 °F

Climate (2021–2026)

Casper, Natrona County International Airport (38.5 miles)

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  • Average Low 2021–2026

    33.3 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    61.6 °F
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