Tupper Lake Weather Forecast

    • 21
    • 34

    Partly Sunny

    • 23
    • 38

    Partly Sunny

    • 27
    • 38

    Mostly Cloudy

    • 28
    • 40

    Chance Rain/Snow

    • 26
    • 40

    Chance Rain/Snow

    • 23
    • 37

    Slight Chance Snow

Today 30 Dec Butte/Blackfoot Region

Mostly cloudy in the morning then clearing. Highs in the mid 30s to lower 40s.

Tonight 30 Dec Butte/Blackfoot Region

Partly cloudy. Lows in the 20s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tupper Lake Temperature Statistics

December Temperature

Helena Regional Airport (52.2 miles)

  • Lowest 27 December, 2025

    -2 °F

  • Average December

    35.4 °F

  • Highest 10 December, 2025

    61 °F

Climate (2020–Present)

Helena Regional Airport (52.2 miles)

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  • Average Low 2020–2025

    36.3 °F

  • Average 2020–2025

    47.7 °F

  • Average High 2020–2025

    59.6 °F
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