Plains Airport Weather Forecast

    • 48
    • 90

    Patchy Smoke

    • 54
    • 95

    Becoming Sunny

    • 53
    • 99

    Slight Chance Thunderstorms

    • 50
    • 94

    Partly Sunny

    • 46
    • 87

    Mostly Sunny

    • 41
    • 81

    Chance Rain

    • 41
    • 78

    Mostly Sunny

Today 24 Aug Lower Clark Fork Region

Mostly sunny. Areas of fog early in the morning. Patchy smoke in the afternoon. Highs in the 80s.

Tonight 24 Aug Lower Clark Fork Region

Partly cloudy. Patchy smoke. Lows in the upper 40s to mid 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Plains Airport Temperature Statistics

August Temperature

Mullan Pass, Mullan Pass Vor (35.4 miles)

  • Lowest 2 August, 2026

    42.1 °F

  • Average August

    63.1 °F

  • Highest 21 August, 2026

    84.9 °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 °F
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