Big Sky Park Weather Forecast

    • 46
    • 80

    Mostly Sunny

    • 49
    • 86

    Chance Rain

    • 43
    • 69

    Rain Likely

    • 45
    • 68

    Chance Rain Showers

    • 49
    • 78

    Chance Thunderstorms

    • 48
    • 76

    Rain Showers Likely

Today 24 May Missoula/Bitterroot Valleys

Mostly sunny. Highs in the mid to upper 70s. West Winds to 15 Mph in the afternoon.

Tonight 24 May Missoula/Bitterroot Valleys

Mostly clear. Lows in the 40s. West Winds to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Sky Park Temperature Statistics

May Temperature

Missoula, Missoula International Airport (4.3 miles)

  • Lowest 18 May, 2026

    26.7 °F

  • Average May

    53.1 °F

  • Highest 12 May, 2026

    82.7 °F

Climate (2021–Present)

Missoula, Missoula International Airport (4.3 miles)

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  • Average Low 2021–2026

    36.1 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    59.8 °F
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