Helena Weather Forecast

    • 61
    • 79

    Chance Rain Showers

    • 57
    • 76

    Mostly Cloudy

    • 55
    • 75

    Partly Sunny

    • 56
    • 76

    Partly Sunny

    • 54
    • 77

    Partly Sunny

    • 56
    • 80

    Partly Sunny

Today 21 Sep Lawrence

Cloudy. A chance of Showers with a slight chance of Thunderstorms in the Morning, then a slight chance of Showers in the afternoon. Much cooler with Highs in the upper 70s. Northeast Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 21 Sep Lawrence

Mostly cloudy. Lows around 60. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Helena Temperature Statistics

September Temperature

Mount Carmel, Mount Carmel Municipal Airport (7.5 miles)

  • Lowest 8 September, 2026

    58.6 °F

  • Average September

    81.1 °F

  • Highest 4 September, 2026

    102.6 °F

Climate (2021–2026)

Mount Carmel, Mount Carmel Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    48.1 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    68.5 °F
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