Libby Weather Forecast

    • 44
    • 82

    Decreasing Clouds

    • 44
    • 76

    Partly Sunny

    • 49
    • 82

    Mostly Cloudy

    • 40
    • 74

    Rain Likely

    • 36
    • 60

    Mostly Cloudy

    • 38
    • 64

    Mostly Cloudy

    • 38
    • 64

    Mostly Cloudy

Today 22 Sep Kootenai/Cabinet Region

Mostly cloudy. Highs in the upper 50s to mid 60s.

Tonight 22 Sep Kootenai/Cabinet Region

Partly cloudy. Lows in the 40s.

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Libby Temperature Statistics

September Temperature

Boundary County Airport (41 miles)

  • Lowest 17 September, 2026

    41 °F

  • Average September

    57.3 °F

  • Highest 1 September, 2026

    78.8 °F

Climate (2021–2026)

Boundary County Airport (41 miles)

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  • Average Low 2021–2026

    37.9 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    56.7 °F
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