Helena West Side Weather Forecast

    • 55
    • 82

    Becoming Sunny

    • 49
    • 85

    Slight Chance Thunderstorms

    • 45
    • 66

    Partly Sunny

    • 47
    • 65

    Chance Rain

    • 44
    • 64

    Partly Sunny

    • 45
    • 66

    Partly Sunny

Today 24 Sep Helena Valley

Sunny. Highs in the lower 80s. Southeast Winds up to 5 Mph increasing to 5 to 15 Mph in the afternoon.

Tonight 24 Sep Helena Valley

Mostly clear. Lows around 50. Southeast Winds 5 to 10 Mph with Gusts to around 25 Mph.

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  • Temperature Real-Time

Helena West Side Temperature Statistics

September Temperature

Helena Regional Airport (5.6 miles)

  • Lowest 15 September, 2026

    39.7 °F

  • Average September

    60.8 °F

  • Highest 10 September, 2026

    87.7 °F

Climate (2021–2026)

Helena Regional Airport (5.6 miles)

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  • Average Low 2021–2026

    36.4 °F

  • Average 2021–2026

    47.9 °F

  • Average High 2021–2026

    59.9 °F
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