McCarthy Park Weather Forecast

    • 50
    • 79

    Increasing Clouds

    • 53
    • 86

    Slight Chance Thunderstorms

    • 51
    • 79

    Rain Showers Likely

    • 44
    • 72

    Rain Showers Likely

    • 41
    • 59

    Rain Showers Likely

    • 41
    • 54

    Rain Showers Likely

Today 9 May Canyon Ferry Area

Sunny early in the morning then becoming partly cloudy. Highs 75 to 80. South Winds 5 to 15 Mph.

Tonight 9 May Canyon Ferry Area

Partly cloudy. Lows 45 to 55. Southeast Winds up to 10 Mph.

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McCarthy Park Temperature Statistics

May Temperature

Helena Regional Airport (29.8 miles)

  • Lowest 6 May, 2025

    34.6 °F

  • Average May

    55.3 °F

  • Highest 3 May, 2025

    82.7 °F

Climate (2020–Present)

Helena Regional Airport (29.8 miles)

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  • Average Low 2020–2025

    36.1 °F

  • Average 2020–2025

    47.4 °F

  • Average High 2020–2025

    59.2 °F
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