Olson Airport Weather Forecast

    • 51
    • 69

    Rain Likely

    • 50
    • 72

    Rain Likely

    • 54
    • 73

    Rain

    • 51
    • 67

    Rain Showers

    • 50
    • 70

    Chance Rain

    • 53
    • 75

    Partly Sunny

Today 4 Sep Flathead/Mission Valleys

Cloudy with a 50 percent chance of rain in the Morning, then partly cloudy in the afternoon. Patchy fog in the morning. Highs in the 60s.

Tonight 4 Sep Flathead/Mission Valleys

Partly cloudy in the evening then becoming mostly cloudy. A 50 percent chance of rain. Patchy fog after midnight. Lows in the 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Olson Airport Temperature Statistics

September Temperature

Missoula, Missoula International Airport (46 miles)

  • Lowest 1 September, 2026

    46 °F

  • Average September

    63.1 °F

  • Highest 1 September, 2026

    87.1 °F

Climate (2021–2026)

Missoula, Missoula International Airport (46 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    59.8 °F
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