Leslie Lake Weather Forecast

    • 42
    • 54

    Chance Rain/Snow

    • 48
    • 65

    Mostly Sunny

    • 49
    • 67

    Chance Rain Showers

    • 45
    • 65

    Chance Rain Showers

    • 45
    • 62

    Partly Sunny

    • 47
    • 65

    Slight Chance Thunderstorms

Today 30 Aug Elkhorn and Boulder Mountains

Sunny. Highs 56 to 64. West Winds 10 to 15 Mph with Gusts to around 35 Mph.

Tonight 30 Aug Elkhorn and Boulder Mountains

Partly cloudy. Lows 37 to 45. West Winds 5 to 15 Mph. Gusts up to 30 Mph in the evening.

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  • Temperature Real-Time

Leslie Lake Temperature Statistics

August Temperature

Helena Regional Airport (22.4 miles)

  • Lowest 4 August, 2026

    45.6 °F

  • Average August

    71 °F

  • Highest 1 August, 2026

    103.6 °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

    60 °F
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