Helena National Forest Weather Forecast

    • 20
    • 39

    Mostly Sunny

    • 26
    • 39

    Increasing Clouds

    • 28
    • 39

    Mostly Cloudy

    • 13
    • 40

    Snow Likely

    • -5
    • 23

    Snow Likely

    • -6
    • 5

    Snow Likely

    • -5
    • 7

    Chance Snow

Today 29 Jan Big Belt

Sunny. Highs 25 to 35. Southwest Winds 5 to 10 Mph.

Tonight 29 Jan Big Belt

Mostly clear. Lows 15 to 20. Southwest Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Helena National Forest Temperature Statistics

January Temperature

Helena Regional Airport (15.5 miles)

  • Lowest 20 January, 2025

    -10.2 °F

  • Average January

    21.6 °F

  • Highest 16 January, 2025

    52.6 °F

Climate (2020–Present)

Helena Regional Airport (15.5 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    59.3 °F
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