Helena Weather Forecast

    • 70
    • 89

    Chance Thunderstorms

    • 69
    • 86

    Rain Showers

    • 68
    • 89

    Chance Rain Showers

    • 65
    • 86

    Chance Rain Showers

    • 64
    • 84

    Chance Rain Showers

    • 63
    • 82

    Chance Rain Showers

    • 66
    • 82

    Chance Rain Showers

Today 2 Sep Iowa

Partly sunny with scattered light Showers and slight chance of Thunderstorms. Heat index Readings 95 to 96. Southwest Winds 5 to 10 Mph. Chance of precipitation 20 percent.

Tonight 2 Sep Iowa

Partly cloudy. A 30 percent chance of light Showers and Thunderstorms early in the morning. Lows in the lower 70s. South Winds up to 5 Mph.

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Helena Temperature Statistics

September Temperature

Lone Rock Tri-County Regional Airport (8.7 miles)

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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

    60.3 °F
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