Tupper Lake Weather Forecast

    • 30
    • 53

    Becoming Sunny

    • 38
    • 63

    Partly Sunny

    • 41
    • 70

    Partly Sunny

    • 45
    • 75

    Partly Sunny

    • 34
    • 61

    Rain

    • 25
    • 45

    Chance Snow

Today 18 Apr Butte/Blackfoot Region

Mostly sunny. Highs in the upper 40s to mid 50s. West Winds to 15 Mph in the afternoon.

Tonight 18 Apr Butte/Blackfoot Region

Mostly clear. Lows in the mid 20s to lower 30s. West Winds to 15 Mph in the evening.

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  • Temperature Real-Time

Tupper Lake Temperature Statistics

April Temperature

Helena Regional Airport (52.2 miles)

  • Lowest 8 April, 2026

    27.6 °F

  • Average April

    46.6 °F

  • Highest 7 April, 2026

    69.7 °F

Climate (2021–Present)

Helena Regional Airport (52.2 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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