Sullivan Lake Weather Forecast

    • 42
    • 69

    Becoming Sunny

    • 43
    • 68

    Rain Showers Likely

    • 39
    • 64

    Rain Showers

    • 28
    • 52

    Chance Rain

    • 28
    • 48

    Partly Sunny

    • 32
    • 54

    Partly Sunny

Today 20 Oct Wood River Foothills

Mostly sunny. Highs 59 to 69. Northeast Winds around 10 Mph. Shifting to southeast in the afternoon.

Tonight 20 Oct Wood River Foothills

Partly cloudy. Lows 38 to 48. Northeast Winds around 10 Mph.

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Sullivan Lake Temperature Statistics

October Temperature

Hailey, Friedman Memorial Airport (14.3 miles)

  • Lowest 14 October, 2026

    32 °F

  • Average October

    50.4 °F

  • Highest 4 October, 2026

    80.6 °F

Climate (2021–2026)

Hailey, Friedman Memorial Airport (14.3 miles)

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  • Average Low 2021–2026

    34.9 °F

  • Average 2021–2026

    43.4 °F

  • Average High 2021–2026

    56.7 °F
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