Swan Valley Weather Forecast

    • 42
    • 76

    Mostly Sunny

    • 43
    • 78

    Mostly Cloudy

    • 44
    • 77

    Partly Sunny

    • 39
    • 71

    Chance Rain Showers

    • 37
    • 69

    Sunny

    • 41
    • 77

    Mostly Sunny

Today 18 Sep Caribou Range

Sunny. Highs 69 to 77.

Tonight 18 Sep Caribou Range

Partly cloudy. Lows 38 to 48.

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Swan Valley Temperature Statistics

September Temperature

Driggs, Driggs-Reed Memorial Airport (23 miles)

  • Lowest 16 September, 2025

    34 °F
  • Average September

    59.4 °F
  • Highest 2 September, 2025

    86 °F

Climate (2020–Present)

Driggs, Driggs-Reed Memorial Airport (23 miles)

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  • Average Low 2020–2025

    28.7 °F
  • Average 2020–2025

    41.1 °F
  • Average High 2020–2025

    53.1 °F
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