Libby Airport Weather Forecast

    • 47
    • 74

    Chance Rain

    • 49
    • 73

    Rain Likely

    • 42
    • 65

    Rain Showers

    • 40
    • 72

    Slight Chance Rain

    • 42
    • 79

    Mostly Sunny

    • 44
    • 80

    Partly Sunny

    • 42
    • 75

    Chance Rain

Today 5 Sep Kootenai/Cabinet Region

Partly cloudy. Slight chance of rain until late Afternoon, then slight chance of Showers and Thunderstorms late in the afternoon. Areas of fog early in the morning. Patchy fog late in the morning. Chance of precipitation 20 percent. Highs in the upper 60s to mid 70s.

Tonight 5 Sep Kootenai/Cabinet Region

Partly cloudy in the Evening, then mostly cloudy with a chance of rain Showers and a slight chance of Thunderstorms after midnight. Chance of precipitation 50 percent. Lows in the 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Libby Airport Temperature Statistics

September Temperature

Boundary County Airport (47.8 miles)

  • Lowest 1 September, 2026

    46.4 °F

  • Average September

    58.2 °F

  • Highest 1 September, 2026

    78.8 °F

Climate (2021–2026)

Boundary County Airport (47.8 miles)

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  • Average Low 2021–2026

    37.8 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    56.7 °F
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