Helena Weather Forecast

    • 40
    • 50

    Rain

    • 26
    • 48

    Rain/Snow

    • 34
    • 42

    Rain/Snow Likely

    • 26
    • 46

    Chance Snow

    • 22
    • 39

    Slight Chance Snow

    • 27
    • 41

    Slight Chance Snow

Today 16 Dec Helena Valley

Sunny. Highs in the lower 50s. West Winds 10 to 20 Mph. Gusts up to 40 Mph in the afternoon.

Tonight 16 Dec Helena Valley

Breezy. Partly cloudy early in the evening then becoming mostly cloudy. A 40 percent chance of rain after midnight. Lows in the upper 30s. South Winds 15 to 25 Mph. Gusts up to 40 Mph increasing to 50 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Helena Temperature Statistics

December Temperature

Helena Regional Airport (1.9 miles)

  • Lowest 1 December, 2025

    3 °F

  • Average December

    34.8 °F

  • Highest 10 December, 2025

    61 °F

Climate (2020–Present)

Helena Regional Airport (1.9 miles)

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  • Average Low 2020–2025

    36.3 °F

  • Average 2020–2025

    47.7 °F

  • Average High 2020–2025

    59.5 °F
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