Helena Weather Forecast

    • 64
    • 83

    Areas Smoke

    • 74
    • 86

    Slight Chance Thunderstorms

    • 73
    • 94

    Mostly Sunny

    • 69
    • 90

    Rain Showers Likely

    • 67
    • 88

    Chance Thunderstorms

    • 67
    • 88

    Slight Chance Thunderstorms

Today 21 Jul Iowa

Sunny until late afternoon then becoming partly sunny. Areas of smoke in the morning. Highs in the lower 80s. East Winds 5 to 10 Mph.

Tonight 21 Jul Iowa

Partly cloudy. Lows in the mid 60s. Southeast Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Helena Temperature Statistics

July Temperature

Lone Rock Tri-County Regional Airport (8.7 miles)

  • Lowest 18 July, 2025

    51.7 °F

  • Average July

    74.3 °F

  • Highest 4 July, 2025

    91.7 °F

Climate (2020–Present)

Lone Rock Tri-County Regional Airport (8.7 miles)

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

  • Average Low 2020–2025

    38.6 °F

  • Average 2020–2025

    49.1 °F

  • Average High 2020–2025

    59.9 °F
Get WillyWeather+ to remove ads