Loon Lake Weather Forecast

    • 38
    • 70

    Mostly Sunny

    • 40
    • 73

    Mostly Sunny

    • 43
    • 76

    Mostly Cloudy

    • 42
    • 74

    Slight Chance Thunderstorms

    • 40
    • 73

    Chance Rain Showers

    • 42
    • 72

    Mostly Sunny

Today 17 Sep Teton and Gros Ventre Mountains

Mostly sunny this Morning, then becoming partly cloudy. Highs in the upper 50s. Northeast Winds around 10 Mph this afternoon.

Tonight 17 Sep Teton and Gros Ventre Mountains

Mostly clear. Lows in the mid 30s.

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  • Temperature Real-Time

Loon Lake Temperature Statistics

September Temperature

Driggs, Driggs-Reed Memorial Airport (26.7 miles)

  • Lowest 12 September, 2025

    37.9 °F

  • Average September

    60.4 °F

  • Highest 2 September, 2025

    86 °F

Climate (2020–Present)

Driggs, Driggs-Reed Memorial Airport (26.7 miles)

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  • Average Low 2020–2025

    28.7 °F

  • Average 2020–2025

    41.1 °F

  • Average High 2020–2025

    53.2 °F
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