Helena Weather Forecast

    • 61
    • 81

    Decreasing Clouds

    • 61
    • 84

    Chance Rain Showers

    • 63
    • 82

    Chance Thunderstorms

    • 65
    • 84

    Rain Showers Likely

    • 63
    • 83

    Chance Thunderstorms

    • 60
    • 82

    Slight Chance Rain Showers

Today 6 Aug Iowa

Mostly sunny. Highs around 80. Southeast Winds up to 5 Mph.

Tonight 6 Aug Iowa

Partly cloudy. Areas of fog after midnight. Lows in the lower 60s. South Winds up to 5 Mph.

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  • Temperature Real-Time

Helena Temperature Statistics

August Temperature

Lone Rock Tri-County Regional Airport (8.7 miles)

  • Lowest 3 August, 2026

    57.9 °F

  • Average August

    71.5 °F

  • Highest 3 August, 2026

    82.9 °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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