Miller Lake Weather Forecast

    • 18
    • 33

    Becoming Sunny

    • 24
    • 33

    Partly Sunny

    • 18
    • 32

    Slight Chance Snow

    • 19
    • 29

    Partly Sunny

    • 17
    • 33

    Chance Snow

    • 11
    • 25

    Chance Snow

    • 13
    • 22

    Chance Snow

Today 18 Jan Butte/Blackfoot Region

Partly cloudy. Highs in the upper 20s to mid 30s.

Tonight 18 Jan Butte/Blackfoot Region

Mostly clear. Lows 11 to 18.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Miller Lake Temperature Statistics

January Temperature

Helena Regional Airport (46 miles)

  • Lowest 8 January, 2026

    19 °F

  • Average January

    37.4 °F

  • Highest 14 January, 2026

    57.9 °F

Climate (2021–Present)

Helena Regional Airport (46 miles)

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  • Average Low 2021–2026

    36.3 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    59.6 °F
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