Tupper Lake Weather Forecast

    • 36
    • 66

    Becoming Sunny

    • 40
    • 73

    Mostly Sunny

    • 44
    • 73

    Mostly Sunny

    • 40
    • 70

    Mostly Sunny

    • 40
    • 70

    Mostly Sunny

    • 41
    • 70

    Mostly Sunny

Today 3 Oct Butte/Blackfoot Region

Mostly cloudy with a 30 percent chance of rain. Highs in the mid 50s to lower 60s.

Tonight 3 Oct Butte/Blackfoot Region

Mostly clear. Lows in the 30s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tupper Lake Temperature Statistics

October Temperature

Helena Regional Airport (52.2 miles)

  • Lowest 1 October, 2026

    45 °F

  • Average October

    55.6 °F

  • Highest 1 October, 2026

    66.9 °F

Climate (2021–2026)

Helena Regional Airport (52.2 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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