Square Lake Weather Forecast

    • 30
    • 44

    Mostly Cloudy

    • 21
    • 34

    Snow

    • 14
    • 27

    Snow Likely

    • 25
    • 37

    Chance Snow

    • 25
    • 40

    Snow

    • 24
    • 32

    Snow

Today 28 Mar Lower Clark Fork Region

Mostly cloudy. Highs in the 50s to lower 60s.

Tonight 28 Mar Lower Clark Fork Region

Mostly cloudy. Lows in the 30s to lower 40s. Southwest Winds to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Square Lake Temperature Statistics

March Temperature

Mullan Pass, Mullan Pass Vor (19.3 miles)

  • Lowest 15 March, 2026

    8.1 °F

  • Average March

    29.8 °F

  • Highest 19 March, 2026

    46.9 °F

Climate (2021–Present)

Mullan Pass, Mullan Pass Vor (19.3 miles)

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  • Average Low 2021–2026

    34 °F

  • Average 2021–2026

    40 °F

  • Average High 2021–2026

    46.4 °F
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