Helena Weather Forecast

    • 52
    • 81

    Decreasing Clouds

    • 45
    • 67

    Chance Rain Showers

    • 61
    • 69

    Rain Showers

    • 53
    • 76

    Chance Rain Showers

    • 54
    • 70

    Chance Rain Showers

    • 51
    • 74

    Chance Rain Showers

Today 12 Sep Iowa

Partly sunny. Highs around 80. West Winds 5 to 10 Mph.

Tonight 12 Sep Iowa

Partly cloudy after midnight then becoming mostly cloudy. Scattered Sprinkles early in the morning. Near steady temperature in the mid 60s. South Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Helena Temperature Statistics

September Temperature

Lone Rock Tri-County Regional Airport (8.7 miles)

  • Lowest 7 September, 2026

    56.6 °F

  • Average September

    75.1 °F

  • Highest 1 September, 2026

    89.7 °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

    38.7 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    60.4 °F
Get WillyWeather+ to remove ads