Gorge Lake Weather Forecast

    • 42
    • 60

    Decreasing Clouds

    • 43
    • 61

    Partly Sunny

    • 31
    • 54

    Chance Rain Showers

    • 36
    • 52

    Sunny

    • 40
    • 60

    Mostly Sunny

    • 41
    • 63

    Partly Sunny

Today 19 Sep Northwest Beaverhead County

Mostly cloudy. Highs 65 to 75. South Winds up to 5 Mph shifting to the west in the afternoon.

Tonight 19 Sep Northwest Beaverhead County

Partly cloudy. Lows 40 to 50. Northwest Winds up to 10 Mph.

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Gorge Lake Temperature Statistics

September Temperature

Dillon, Dillon Airport (25.5 miles)

  • Lowest 5 September, 2025

    42.1 °F

  • Average September

    60.4 °F

  • Highest 2 September, 2025

    89.1 °F

Climate (2020–Present)

Dillon, Dillon Airport (25.5 miles)

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  • Average Low 2020–2025

    30.7 °F

  • Average 2020–2025

    42.9 °F

  • Average High 2020–2025

    55.8 °F
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