McCarthy Park Weather Forecast

    • 23
    • 40

    Increasing Clouds

    • 17
    • 38

    Slight Chance Snow

    • 17
    • 33

    Partly Sunny

    • 12
    • 35

    Mostly Cloudy

    • 15
    • 30

    Slight Chance Snow

    • 19
    • 36

    Mostly Cloudy

Today 19 Jan Canyon Ferry Area

Sunny. Highs in the upper 30s. South Winds up to 10 Mph.

Tonight 19 Jan Canyon Ferry Area

Partly cloudy. Lows in the mid 20s. South Winds up to 10 Mph.

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McCarthy Park Temperature Statistics

January Temperature

Helena Regional Airport (29.8 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 (29.8 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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