Helena Weather Forecast

    • 39
    • 65

    Increasing Clouds

    • 35
    • 57

    Rain Showers Likely

    • 35
    • 61

    Rain Showers Likely

    • 41
    • 64

    Chance Rain Showers

    • 40
    • 62

    Rain Showers Likely

    • 38
    • 55

    Rain Showers Likely

Today 18 May Helena Valley

Sunny in the morning then becoming partly cloudy. Highs in the mid 60s. West Winds 5 to 15 Mph. Gusts up to 30 Mph in the afternoon.

Tonight 18 May Helena Valley

Partly cloudy in the Evening, then mostly cloudy with a 30 percent chance of rain Showers after midnight. Lows around 40. Northwest Winds 5 to 15 Mph with Gusts to around 30 Mph shifting to the west up to 5 Mph after midnight.

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  • Temperature Forecast NOAA

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Helena Temperature Statistics

May Temperature

Helena Regional Airport (1.9 miles)

  • Lowest 4 May, 2024

    29.8 °F

  • Average May

    52.1 °F

  • Highest 12 May, 2024

    82.7 °F

Climate (2019–Present)

Helena Regional Airport (1.9 miles)

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  • Average Low 2019–2024

    35.9 °F

  • Average 2019–2024

    46.9 °F

  • Average High 2019–2024

    58.4 °F
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