Tupper Lake Weather Forecast

    • 28
    • 48

    Chance Snow

    • 27
    • 45

    Rain/Snow

    • 29
    • 53

    Partly Sunny

    • 34
    • 58

    Slight Chance Thunderstorms

    • 35
    • 59

    Chance Rain

    • 38
    • 64

    Partly Sunny

    • 39
    • 66

    Chance Rain

Today 16 May Butte/Blackfoot Region

Cloudy. Areas of rain and snow in the Morning, then chance of rain Showers, snow Showers and a slight chance of Thunderstorms in the afternoon. Chance of precipitation 50 percent. Highs in the 40s. Northwest Winds 15 to 20 Mph in the afternoon.

Tonight 16 May Butte/Blackfoot Region

Snow likely in the evening. Areas of rain early in the evening. Areas of snow after midnight. Widespread frost late in the night. Chance of precipitation 70 percent. Snow level 4000 feet. Little or no new snow accumulation. Lows in the 20s. Northwest Winds 15 to 20 Mph with Gusts to around 30 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tupper Lake Temperature Statistics

May Temperature

Helena Regional Airport (52.2 miles)

  • Lowest 6 May, 2026

    27.6 °F

  • Average May

    56.6 °F

  • Highest 13 May, 2026

    84.7 °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

    60.1 °F
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