Helena Weather Forecast

    • 53
    • 79

    Partly Sunny

    • 51
    • 77

    Mostly Cloudy

    • 54
    • 76

    Mostly Cloudy

    • 53
    • 77

    Mostly Sunny

    • 51
    • 76

    Mostly Sunny

    • 53
    • 77

    Mostly Sunny

    • 59
    • 80

    Mostly Sunny

Today 29 May Mason

Mostly sunny this Morning, then becoming partly cloudy. Highs in the upper 70s. East Winds around 5 Mph.

Tonight 29 May Mason

Partly cloudy. Lows in the lower 50s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Helena Temperature Statistics

May Temperature

Flemingsburg Fleming-Mason Airport (3.7 miles)

  • Lowest 2 May, 2026

    34 °F

  • Average May

    62.3 °F

  • Highest 18 May, 2026

    89.2 °F

Climate (2021–Present)

Flemingsburg Fleming-Mason Airport (3.7 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    56.1 °F

  • Average High 2021–2026

    66.3 °F
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