Helena Weather Forecast

    • 61
    • 86

    Mostly Sunny

    • 64
    • 87

    Mostly Sunny

    • 66
    • 88

    Partly Sunny

    • 64
    • 83

    Rain Showers Likely

    • 62
    • 82

    Chance Rain Showers

    • 61
    • 83

    Mostly Sunny

Today 28 Jul Iowa

Not as warm. Mostly sunny. Patchy smoke early in the afternoon. Highs in the mid 80s. Northeast Winds 5 to 10 Mph.

Tonight 28 Jul Iowa

Mostly clear. Patchy smoke through around midnight. Lows in the lower 60s. East Winds up to 5 Mph shifting to the south after midnight.

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Helena Temperature Statistics

July Temperature

Lone Rock Tri-County Regional Airport (8.7 miles)

  • Lowest 23 July, 2026

    47.6 °F

  • Average July

    75 °F

  • Highest 15 July, 2026

    95.6 °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

    49.4 °F

  • Average High 2021–2026

    60.4 °F
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