Island Lake Weather Forecast

    • 14
    • 26

    Mostly Sunny

    • 13
    • 26

    Mostly Sunny

    • 13
    • 27

    Mostly Sunny

    • 10
    • 26

    Partly Sunny

    • 7
    • 20

    Mostly Sunny

    • 11
    • 21

    Partly Sunny

    • 17
    • 24

    Chance Snow

Today 19 Jan Sawtooth/Stanley Basin

Sunny. Highs 20 to 30.

Tonight 19 Jan Sawtooth/Stanley Basin

Mostly clear. Lows 2 below to 8 above zero.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Island Lake Temperature Statistics

January Temperature

Stanley, Stanley Ranger Station (18 miles)

  • Lowest 16 January, 2026

    -6 °F

  • Average January

    17.2 °F

  • Highest 3 January, 2026

    42.1 °F

Climate (2021–Present)

Stanley, Stanley Ranger Station (18 miles)

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  • Average Low 2021–2026

    23.2 °F

  • Average 2021–2026

    38.4 °F

  • Average High 2021–2026

    53.8 °F
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