Tupper Lake Weather Forecast

    • 51
    • 80

    Mostly Sunny

    • 51
    • 81

    Mostly Sunny

    • 54
    • 78

    Mostly Cloudy

    • 55
    • 82

    Chance Thunderstorms

    • 52
    • 83

    Mostly Sunny

    • 49
    • 76

    Mostly Sunny

Today 4 Jul Butte/Blackfoot Region

Mostly sunny. Highs in the mid 70s to lower 80s. Southwest Winds to 15 Mph.

Tonight 4 Jul Butte/Blackfoot Region

Mostly clear. Lows in the upper 40s to mid 50s.

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  • Temperature Real-Time

Tupper Lake Temperature Statistics

July Temperature

Helena Regional Airport (52.2 miles)

  • Lowest 1 July, 2026

    53.1 °F

  • Average July

    60.4 °F

  • Highest 1 July, 2026

    70 °F

Climate (2021–2026)

Helena Regional Airport (52.2 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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