Mill Lake Weather Forecast

    • 37
    • 48

    Increasing Clouds

    • 39
    • 46

    Rain

    • 32
    • 43

    Rain Showers

    • 23
    • 35

    Chance Rain/Snow

    • 27
    • 33

    Partly Sunny

    • 30
    • 39

    Slight Chance Snow

Today 20 Oct Sun Valley Region

Partly sunny in the morning then clearing. Highs 57 to 66.

Tonight 20 Oct Sun Valley Region

Partly cloudy. A slight chance of rain after midnight. Lows 34 to 44.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mill Lake Temperature Statistics

October Temperature

Hailey, Friedman Memorial Airport (25.5 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 (25.5 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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