Plains Weather Forecast

    • 25
    • 39

    Slight Chance Snow

    • 24
    • 42

    Mostly Cloudy

    • 31
    • 43

    Mostly Cloudy

    • 39
    • 44

    Chance Rain

    • 34
    • 48

    Mostly Cloudy

    • 31
    • 48

    Partly Sunny

Today 9 Jan Lower Clark Fork Region

Mostly cloudy. Areas of snow until late Afternoon, then slight chance of rain and snow late in the afternoon. Patchy fog in the morning. Chance of precipitation 50 percent. Highs in the 30s. Southwest Winds to 15 Mph.

Tonight 9 Jan Lower Clark Fork Region

Mostly cloudy in the evening then becoming partly cloudy. Patchy fog after midnight. Lows 19 to 26.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Plains Temperature Statistics

January Temperature

Mullan Pass, Mullan Pass Vor (36.7 miles)

  • Lowest 7 January, 2026

    18 °F

  • Average January

    27.7 °F

  • Highest 1 January, 2026

    37.9 °F

Climate (2021–Present)

Mullan Pass, Mullan Pass Vor (36.7 miles)

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  • Average Low 2021–2026

    33.8 °F

  • Average 2021–2026

    39.8 °F

  • Average High 2021–2026

    46.2 °F
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