Helena Weather Forecast

    • 65
    • 75

    Rain Showers

    • 59
    • 73

    Rain Showers

    • 56
    • 66

    Chance Rain Showers

    • 56
    • 65

    Chance Rain Showers

    • 55
    • 66

    Chance Rain Showers

    • 55
    • 67

    Mostly Cloudy

Today 19 Sep Sandusky

Partly sunny with a chance of Showers in the Morning, then mostly cloudy with Showers likely with a slight chance of Thunderstorms in the afternoon. Highs in the mid 70s. East Winds around 5 Mph. Chance of rain 70 percent.

Tonight 19 Sep Sandusky

Mostly cloudy with a chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Lows in the mid 60s. Southeast Winds around 5 Mph, becoming south after midnight. Chance of rain 70 percent.

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Helena Temperature Statistics

September Temperature

Toledo - Toledo Executive Airport (18 miles)

  • Lowest 14 September, 2026

    51.1 °F

  • Average September

    72 °F

  • Highest 2 September, 2026

    93 °F

Climate (2021–2026)

Toledo - Toledo Executive Airport (18 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    62.7 °F
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