Helena Weather Forecast

    • 58
    • 81

    Mostly Sunny

    • 60
    • 83

    Rain Showers

    • 55
    • 77

    Chance Thunderstorms

    • 57
    • 81

    Mostly Sunny

    • 61
    • 83

    Partly Sunny

    • 66
    • 84

    Slight Chance Thunderstorms

Today 3 Aug Iowa

Sunny. Highs in the lower 80s. South Winds up to 5 Mph.

Tonight 3 Aug Iowa

Clear until early morning then becoming partly cloudy. Lows around 60. South Winds up to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Helena Temperature Statistics

August Temperature

Lone Rock Tri-County Regional Airport (8.7 miles)

  • Lowest 1 August, 2026

    64.9 °F

  • Average August

    70 °F

  • Highest 1 August, 2026

    80.1 °F

Climate (2021–2026)

Lone Rock Tri-County Regional Airport (8.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    49.5 °F

  • Average High 2021–2026

    60.4 °F
Get WillyWeather+ to remove ads