Helena Weather Forecast

    • 44
    • 76

    Partly Sunny

    • 49
    • 78

    Mostly Cloudy

    • 51
    • 83

    Slight Chance Thunderstorms

    • 46
    • 76

    Mostly Sunny

    • 44
    • 72

    Mostly Sunny

    • 49
    • 82

    Mostly Sunny

    • 51
    • 86

    Slight Chance Thunderstorms

Today 18 Jun Helena Valley

Mostly sunny. Highs in the mid 70s. Northwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

Tonight 18 Jun Helena Valley

Mostly clear. A 20 percent chance of rain Showers early in the evening. Lows in the lower 40s. North Winds 10 to 15 Mph with Gusts to around 30 Mph becoming northwest up to 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Helena Temperature Statistics

June Temperature

Helena Regional Airport (1.9 miles)

  • Lowest 8 June, 2026

    34.6 °F

  • Average June

    59 °F

  • Highest 16 June, 2026

    86 °F

Climate (2021–2026)

Helena Regional Airport (1.9 miles)

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  • Average Low 2021–2026

    36.5 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    60 °F
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