Garnett Lake Weather Forecast

    • 46
    • 74

    Chance Thunderstorms

    • 48
    • 72

    Chance Rain Showers

    • 46
    • 74

    Mostly Sunny

    • 46
    • 78

    Mostly Sunny

    • 48
    • 78

    Partly Sunny

    • 48
    • 80

    Partly Sunny

Today 15 Sep North Bighorn Basin

Partly cloudy with Showers likely. A slight chance of Thunderstorms in the Morning, then a chance of Thunderstorms in the afternoon. Highs in the lower 70s. Southwest Winds around 10 Mph, becoming southeast in the afternoon. Chance of rain 60 percent.

Tonight 15 Sep North Bighorn Basin

Mostly clear. Lows in the lower 50s. Southwest Winds around 10 Mph.

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  • Temperature Real-Time

Garnett Lake Temperature Statistics

September Temperature

South Big Horn County Airport (3.1 miles)

  • Lowest 6 September, 2025

    39 °F

  • Average September

    67.7 °F

  • Highest 2 September, 2025

    93 °F

Climate (2020–Present)

South Big Horn County Airport (3.1 miles)

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  • Average Low 2020–2025

    33.5 °F

  • Average 2020–2025

    47.2 °F

  • Average High 2020–2025

    61.3 °F
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