Helena Weather Forecast

    • 64
    • 84

    Rain Showers Likely

    • 61
    • 83

    Slight Chance Rain Showers

    • 61
    • 82

    Partly Sunny

    • 63
    • 86

    Partly Sunny

    • 66
    • 87

    Chance Thunderstorms

    • 65
    • 86

    Chance Thunderstorms

Today 4 Jul Iowa

Areas of fog in the morning. Partly sunny with a 50 percent chance of light Showers and Thunderstorms. Highs in the mid 80s. West Winds up to 10 Mph.

Tonight 4 Jul Iowa

Partly cloudy with a 40 percent chance of light Showers and Thunderstorms through around Midnight, then mostly cloudy after midnight. Patchy fog late in the evening. Lows in the mid 60s. Northwest Winds up to 5 Mph.

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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 1 July, 2026

    78.1 °F

  • Average July

    84.6 °F

  • Highest 1 July, 2026

    91 °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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