Kilbrennan Lake Weather Forecast

    • 40
    • 42

    Chance Rain

    • 36
    • 45

    Mostly Cloudy

    • 31
    • 41

    Partly Sunny

    • 28
    • 37

    Mostly Cloudy

    • 26
    • 37

    Partly Sunny

    • 25
    • 38

    Mostly Sunny

    • 24
    • 38

    Partly Sunny

Today 12 Jan Kootenai/Cabinet Region

Mostly cloudy with Areas of rain. Areas of snow early in the morning. Chance of precipitation 50 percent. Highs in the 40s.

Tonight 12 Jan Kootenai/Cabinet Region

Mostly cloudy with a 40 percent chance of Areas of rain. Lows in the mid 30s to lower 40s.

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  • Temperature Real-Time

Kilbrennan Lake Temperature Statistics

January Temperature

Boundary County Airport (20.5 miles)

  • Lowest 1 January, 2026

    19.4 °F

  • Average January

    32.2 °F

  • Highest 4 January, 2026

    42.8 °F

Climate (2021–Present)

Boundary County Airport (20.5 miles)

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  • Average Low 2021–2026

    37.6 °F

  • Average 2021–2026

    47.2 °F

  • Average High 2021–2026

    56.7 °F
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