Stewart Lake Weather Forecast

    • 22
    • 35

    Rain/Snow

    • 21
    • 36

    Blizzard

    • 29
    • 34

    Rain/Snow

    • 19
    • 33

    Snow Likely

    • 19
    • 23

    Chance Snow

    • 23
    • 27

    Chance Snow

Today 16 Dec Butte/Blackfoot Region

Mostly cloudy with Areas of rain. Areas of snow. Chance of precipitation 50 percent. Highs in the upper 30s to mid 40s. Windy with southwest Winds 20 to 30 Mph with Gusts to around 60 Mph.

Tonight 16 Dec Butte/Blackfoot Region

Rain likely and a slight chance of snow after midnight. Chance of precipitation 70 percent. Little or no new snow accumulation. Lows in the mid 20s to lower 30s. Windy with southwest Winds 20 to 30 Mph with Gusts to around 60 Mph.

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Stewart Lake Temperature Statistics

December Temperature

Butte, Bert Mooney Airport (44.7 miles)

  • Lowest 1 December, 2025

    3 °F

  • Average December

    35 °F

  • Highest 13 December, 2025

    53.1 °F

Climate (2020–Present)

Butte, Bert Mooney Airport (44.7 miles)

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  • Average Low 2020–2025

    28.1 °F

  • Average 2020–2025

    41.9 °F

  • Average High 2020–2025

    55.2 °F
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