Helena Weather Forecast

    • 52
    • 68

    Decreasing Clouds

    • 50
    • 73

    Mostly Sunny

    • 58
    • 73

    Rain Showers Likely

    • 58
    • 71

    Rain Showers Likely

    • 48
    • 70

    Slight Chance Rain Showers

    • 46
    • 64

    Chance Rain Showers

Today 27 Sep Iowa

Mostly cloudy. Highs in the upper 60s. Southeast Winds up to 5 Mph shifting to the north in the afternoon.

Tonight 27 Sep Iowa

Partly cloudy. Lows in the lower 50s. Calm Winds.

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Helena Temperature Statistics

September Temperature

Lone Rock Tri-County Regional Airport (8.7 miles)

  • Lowest 23 September, 2026

    40.6 °F

  • Average September

    66.4 °F

  • Highest 1 September, 2026

    89.7 °F

Climate (2021–2026)

Lone Rock Tri-County Regional Airport (8.7 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    60.4 °F
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