Helena Weather Forecast

    • 62
    • 75

    Rain Showers

    • 60
    • 76

    Rain Showers Likely

    • 55
    • 79

    Mostly Sunny

    • 59
    • 82

    Mostly Sunny

    • 63
    • 85

    Chance Thunderstorms

    • 60
    • 80

    Slight Chance Thunderstorms

Today 31 Jul Iowa

Cooler. Scattered Showers in the Morning, then Showers and slight chance of Thunderstorms in the late morning and afternoon. Highs in the lower 70s. Southeast Winds 5 to 15 Mph. Gusts up to 30 Mph in the afternoon. Chance of precipitation near 100 percent.

Tonight 31 Jul Iowa

Showers and chance of Thunderstorms until early Morning, then Showers likely early in the morning. Near steady temperature in the mid 60s. Northeast Winds 15 to 20 Mph. Chance of precipitation near 100 percent.

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  • Temperature Real-Time

Helena Temperature Statistics

July Temperature

Lone Rock Tri-County Regional Airport (8.7 miles)

  • Lowest 23 July, 2026

    47.6 °F

  • Average July

    75.4 °F

  • Highest 27 July, 2026

    99.6 °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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