Lake Sutherlin Weather Forecast

    • 40
    • 67

    Chance Rain Showers

    • 36
    • 59

    Partly Sunny

    • 46
    • 75

    Partly Sunny

    • 38
    • 70

    Breezy

    • 44
    • 75

    Partly Sunny

    • 42
    • 73

    Breezy

Today 8 May Meagher County Valleys

Mostly sunny. Patchy fog early in the morning. Highs in the upper 60s. Southwest Winds up to 10 Mph with Gusts to around 25 Mph shifting to the west with Gusts to around 35 Mph in the afternoon.

Tonight 8 May Meagher County Valleys

Mostly cloudy. A 20 percent chance of rain Showers in the evening. Lows in the lower 40s. Northwest Winds 5 to 15 Mph with Gusts to around 35 Mph.

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  • Temperature Forecast NOAA

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Lake Sutherlin Temperature Statistics

May Temperature

Helena Regional Airport (59 miles)

  • Lowest 1 May, 2026

    32.6 °F

  • Average May

    51.9 °F

  • Highest 3 May, 2026

    76.6 °F

Climate (2021–Present)

Helena Regional Airport (59 miles)

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  • Average Low 2021–2026

    36.5 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    60 °F
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