Helena Weather Forecast

    • 52
    • 72

    Rain Showers

    • 54
    • 77

    Chance Rain Showers

    • 54
    • 78

    Partly Sunny

    • 53
    • 73

    Chance Rain Showers

    • 52
    • 76

    Partly Sunny

    • 56
    • 77

    Chance Rain Showers

    • 54
    • 77

    Chance Thunderstorms

Today 18 Jun Iowa

Mostly sunny. Northwest Winds 5 to 10 Mph.

Tonight 18 Jun Iowa

Mostly clear. Scattered light rain Showers and isolated Thunderstorms in the evening. Lows in the lower 50s. West Winds up to 5 Mph. Chance of precipitation 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Helena Temperature Statistics

June Temperature

Lone Rock Tri-County Regional Airport (8.7 miles)

  • Lowest 3 June, 2026

    46.7 °F

  • Average June

    69.4 °F

  • Highest 10 June, 2026

    89.7 °F

Climate (2021–2026)

Lone Rock Tri-County Regional Airport (8.7 miles)

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  • Average Low 2021–2026

    38.5 °F

  • Average 2021–2026

    49.4 °F

  • Average High 2021–2026

    60.3 °F
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