Miller Lake Weather Forecast

    • 20
    • 28

    Mostly Cloudy

    • 28
    • 32

    Snow Likely

    • 30
    • 35

    Snow

    • 25
    • 36

    Snow

    • 31
    • 36

    Chance Rain/Snow

    • 32
    • 40

    Rain/Snow Likely

    • 30
    • 43

    Rain/Snow Likely

Today 3 Dec Butte/Blackfoot Region

Partly cloudy. Patchy freezing fog until late afternoon. Highs in the upper 20s to mid 30s.

Tonight 3 Dec Butte/Blackfoot Region

Mostly cloudy. Lows 13 to 20. Southwest Winds to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Miller Lake Temperature Statistics

December Temperature

Helena Regional Airport (46 miles)

  • Lowest 1 December, 2025

    3 °F

  • Average December

    19.9 °F

  • Highest 1 December, 2025

    35.1 °F

Climate (2020–Present)

Helena Regional Airport (46 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    47.6 °F

  • Average High 2020–2025

    59.5 °F
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