Tupper Lake Weather Forecast

    • 45
    • 77

    Decreasing Clouds

    • 42
    • 71

    Mostly Sunny

    • 40
    • 69

    Slight Chance Thunderstorms

    • 45
    • 77

    Mostly Sunny

    • 48
    • 82

    Partly Sunny

    • 49
    • 83

    Partly Sunny

Today 20 Jun Butte/Blackfoot Region

Mostly cloudy. Chance of rain Showers and a slight chance of Thunderstorms in the afternoon. Chance of precipitation 50 percent. Highs in the 70s. West Winds to 15 Mph.

Tonight 20 Jun Butte/Blackfoot Region

Partly cloudy. Chance of rain Showers and a slight chance of Thunderstorms in the evening. Chance of precipitation 50 percent. Lows in the 40s. West Winds to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tupper Lake Temperature Statistics

June Temperature

Helena Regional Airport (52.2 miles)

  • Lowest 8 June, 2026

    34.6 °F

  • Average June

    58.9 °F

  • Highest 16 June, 2026

    86.6 °F

Climate (2021–2026)

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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