Olson Airport Weather Forecast

    • 30
    • 57

    Rain Likely

    • 41
    • 56

    Rain

    • 38
    • 53

    Rain

    • 33
    • 52

    Chance Rain Showers

    • 36
    • 58

    Slight Chance Rain Showers

    • 38
    • 60

    Chance Rain Showers

    • 42
    • 66

    Slight Chance Rain Showers

Today 17 Oct Flathead/Mission Valleys

Chance of rain Showers early in the afternoon. Rain Showers likely late in the afternoon. Chance of Showers 70 percent. Highs in the 50s. Southwest Winds 15 to 20 Mph.

Tonight 17 Oct Flathead/Mission Valleys

Mostly cloudy early in the evening then clearing. A 50 percent chance of Areas of rain in the evening. Lows in the 20s. West Winds to 15 Mph in the evening.

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Olson Airport Temperature Statistics

October Temperature

Missoula, Missoula International Airport (46 miles)

  • Lowest 6 October, 2025

    27 °F
  • Average October

    47.8 °F
  • Highest 10 October, 2025

    81 °F

Climate (2020–Present)

Missoula, Missoula International Airport (46 miles)

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  • Average Low 2020–2025

    35.6 °F
  • Average 2020–2025

    47.1 °F
  • Average High 2020–2025

    59.2 °F
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