Leslie Lake Weather Forecast

    • 30
    • 39

    Mostly Sunny

    • 36
    • 49

    Partly Sunny

    • 35
    • 52

    Partly Sunny

    • 36
    • 48

    Mostly Sunny

    • 38
    • 51

    Partly Sunny

    • 36
    • 48

    Chance Rain/Snow

Today 15 Oct Elkhorn and Boulder Mountains

Sunny. Highs 39 to 45. Southeast Winds up to 5 Mph.

Tonight 15 Oct Elkhorn and Boulder Mountains

Mostly clear. Lows in the upper 20s. Southwest Winds up to 10 Mph with Gusts to around 25 Mph.

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Leslie Lake Temperature Statistics

October Temperature

Helena Regional Airport (22.4 miles)

  • Lowest 13 October, 2026

    27 °F

  • Average October

    52.6 °F

  • Highest 9 October, 2026

    82.7 °F

Climate (2021–2026)

Helena Regional Airport (22.4 miles)

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  • Average Low 2021–2026

    36.4 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    59.9 °F
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