Helena Weather Forecast

    • 56
    • 79

    Increasing Clouds

    • 64
    • 82

    Chance Rain Showers

    • 60
    • 82

    Mostly Sunny

    • 56
    • 82

    Mostly Sunny

    • 60
    • 82

    Chance Rain Showers

    • 65
    • 81

    Chance Thunderstorms

    • 68
    • 85

    Chance Rain Showers

Today 24 Aug Iowa

Partly sunny. Northwest Winds up to 5 Mph.

Tonight 24 Aug Iowa

Partly cloudy. Patchy fog early in the morning. Lows in the upper 50s. Southeast Winds up to 5 Mph.

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Helena Temperature Statistics

August Temperature

Lone Rock Tri-County Regional Airport (8.7 miles)

  • Lowest 20 August, 2026

    54.6 °F

  • Average August

    71.4 °F

  • Highest 10 August, 2026

    85.6 °F

Climate (2021–2026)

Lone Rock Tri-County Regional Airport (8.7 miles)

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    49.5 °F

  • Average High 2021–2026

    60.4 °F
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