McCarthy Park Weather Forecast

    • 51
    • 79

    Mostly Sunny

    • 54
    • 85

    Slight Chance Thunderstorms

    • 51
    • 79

    Mostly Sunny

    • 56
    • 87

    Mostly Sunny

    • 52
    • 84

    Chance Rain Showers

Today 28 May Canyon Ferry Area

Sunny. Highs 75 to 80. Northeast Winds up to 10 Mph.

Tonight 28 May Canyon Ferry Area

Mostly clear. Lows around 50. East 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

    55.4 °F
  • Highest 10 May, 2025

    88.6 °F

Climate (2020–Present)

Helena Regional Airport (29.8 miles)

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  • Average Low 2020–2025

    36.1 °F
  • Average 2020–2025

    47.5 °F
  • Average High 2020–2025

    59.3 °F
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