Plains Airport Weather Forecast

    • 36
    • 81

    Mostly Cloudy

    • 38
    • 75

    Chance Rain

    • 29
    • 59

    Rain/Snow Likely

    • 23
    • 49

    Chance Rain/Snow

    • 27
    • 57

    Mostly Sunny

    • 32
    • 63

    Chance Rain

    • 31
    • 60

    Chance Rain

Today 8 Oct Lower Clark Fork Region

Partly cloudy. Highs in the 50s.

Tonight 8 Oct Lower Clark Fork Region

Mostly cloudy then becoming partly cloudy late in the evening then becoming mostly cloudy. Lows in the 40s. South Winds 15 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Plains Airport Temperature Statistics

October Temperature

Mullan Pass, Mullan Pass Vor (35.4 miles)

  • Lowest 1 October, 2026

    41 °F

  • Average October

    52.8 °F

  • Highest 4 October, 2026

    69.1 °F

Climate (2021–2026)

Mullan Pass, Mullan Pass Vor (35.4 miles)

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  • Average Low 2021–2026

    33.8 °F

  • Average 2021–2026

    39.7 °F

  • Average High 2021–2026

    46.1 °F
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