Helena Weather Forecast

    • 62
    • 83

    Decreasing Clouds

    • 63
    • 86

    Mostly Sunny

    • 65
    • 87

    Mostly Sunny

    • 67
    • 88

    Mostly Sunny

    • 69
    • 89

    Mostly Sunny

    • 68
    • 90

    Mostly Sunny

Today 10 Jul Iowa

Partly sunny. Patchy fog in the morning. Highs in the lower 80s. Northeast Winds up to 5 Mph.

Tonight 10 Jul Iowa

Partly cloudy. Patchy fog. Near steady temperature in the upper 60s. East Winds up to 5 Mph.

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Helena Temperature Statistics

July Temperature

Lone Rock Tri-County Regional Airport (8.7 miles)

  • Lowest 7 July, 2026

    59 °F

  • Average July

    76.1 °F

  • Highest 1 July, 2026

    92.6 °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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