Una Mountain Weather Forecast

    • 39
    • 47

    Chance Rain

    • 34
    • 43

    Chance Rain

    • 39
    • 46

    Mostly Cloudy

    • 38
    • 52

    Chance Rain Showers

    • 39
    • 53

    Mostly Sunny

    • 44
    • 56

    Partly Sunny

Today 29 Sep Potomac/Seeley Lake Region

Mostly sunny. Highs in the mid 60s to lower 70s.

Tonight 29 Sep Potomac/Seeley Lake Region

Mostly cloudy until early Morning, then a 20 percent chance of rain late in the night. Lows in the 40s. Southwest Winds to 15 Mph.

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  • Temperature Real-Time

Una Mountain Temperature Statistics

September Temperature

Missoula, Missoula International Airport (50.3 miles)

  • Lowest 27 September, 2026

    30 °F

  • Average September

    58.1 °F

  • Highest 1 September, 2026

    88.6 °F

Climate (2021–2026)

Missoula, Missoula International Airport (50.3 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    59.7 °F
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