Helena Weather Forecast

    • 45
    • 73

    Partly Sunny

    • 48
    • 70

    Sunny

    • 63
    • 77

    Partly Sunny

    • 55
    • 78

    Chance Rain Showers

    • 56
    • 72

    Chance Rain Showers

    • 57
    • 79

    Rain Showers Likely

Today 10 Sep Northern St. Lawrence

Mostly sunny. Less humid with Highs in the lower 70s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 10 Sep Northern St. Lawrence

Partly cloudy until Midnight, then clearing. Lows in the upper 40s. Northwest Winds around 10 Mph until Midnight, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Helena Temperature Statistics

September Temperature

Massena, Massena International-Richards Field (5.6 miles)

  • Lowest 7 September, 2026

    52 °F

  • Average September

    66.8 °F

  • Highest 2 September, 2026

    81.6 °F

Climate (2021–2026)

Massena, Massena International-Richards Field (5.6 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    46.2 °F

  • Average High 2021–2026

    55.9 °F
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