Island Lake Weather Forecast

    • 20
    • 37

    Mostly Sunny

    • 9
    • 30

    Mostly Sunny

    • 13
    • 21

    Partly Sunny

    • 16
    • 31

    Mostly Sunny

    • 13
    • 30

    Mostly Sunny

    • 16
    • 30

    Partly Sunny

Today 14 Jan Absaroka Mountains

Mostly sunny. Highs in the upper 30s. West Winds 10 to 15 Mph with Gusts up to 35 Mph.

Tonight 14 Jan Absaroka Mountains

Partly cloudy. Lows in the mid 20s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

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Island Lake Temperature Statistics

January Temperature

Powell Municipal Airport (36.7 miles)

  • Lowest 9 January, 2026

    17.6 °F

  • Average January

    35.3 °F

  • Highest 4 January, 2026

    53.6 °F

Climate (2021–Present)

Powell Municipal Airport (36.7 miles)

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  • Average Low 2021–2026

    34.9 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    56.8 °F
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