Helena Weather Forecast

    • 69
    • 90

    Thunderstorms

    • 72
    • 92

    Chance Rain Showers

    • 62
    • 89

    Mostly Sunny

    • 67
    • 86

    Chance Rain Showers

    • 65
    • 88

    Slight Chance Thunderstorms

    • 59
    • 83

    Partly Sunny

Today 16 Jul Iowa

Very warm and humid. Partly sunny. Areas of smoke in the morning. Slight chance of light Showers late in the morning. Chance of light Showers and Thunderstorms in the afternoon. Highs around 90. Southeast Winds up to 5 Mph. Chance of precipitation 50 percent. Highest heat index Readings 95 to 98 in the late morning and afternoon.

Tonight 16 Jul Iowa

Partly cloudy. Chance of light Showers and Thunderstorms in the evening. Slight chance of light Showers early in the morning. Lows around 70. Southeast Winds up to 5 Mph. Chance of precipitation 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Helena Temperature Statistics

July Temperature

Lone Rock Tri-County Regional Airport (8.7 miles)

  • Lowest 11 July, 2026

    58.6 °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

    38.6 °F

  • Average 2021–2026

    49.4 °F

  • Average High 2021–2026

    60.3 °F
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