Lake Sutherlin Weather Forecast

    • 48
    • 83

    Areas Smoke

    • 52
    • 87

    Areas Smoke

    • 54
    • 88

    Mostly Sunny

    • 51
    • 85

    Mostly Sunny

    • 51
    • 84

    Mostly Sunny

    • 51
    • 84

    Mostly Sunny

    • 48
    • 80

    Mostly Sunny

Today 6 Aug Meagher County Valleys

Sunny. Areas of smoke. Highs in the lower 80s. Northwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

Tonight 6 Aug Meagher County Valleys

Mostly clear then becoming mostly cloudy late in the evening then becoming partly cloudy. Areas of smoke. Lows in the upper 40s. North Winds 5 to 10 Mph with Gusts to around 25 Mph shifting to the east after midnight.

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Lake Sutherlin Temperature Statistics

August Temperature

Helena Regional Airport (59 miles)

  • Lowest 4 August, 2026

    46 °F

  • Average August

    69.7 °F

  • Highest 1 August, 2026

    103.6 °F

Climate (2021–2026)

Helena Regional Airport (59 miles)

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  • Average Low 2021–2026

    36.4 °F

  • Average 2021–2026

    47.9 °F

  • Average High 2021–2026

    59.9 °F
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