Kilbrennan Lake Weather Forecast

    • 27
    • 41

    Slight Chance Snow

    • 33
    • 50

    Mostly Sunny

    • 32
    • 53

    Mostly Sunny

    • 36
    • 53

    Mostly Sunny

    • 36
    • 49

    Chance Rain

    • 42
    • 51

    Rain

    • 38
    • 48

    Rain

Today 13 Oct Kootenai/Cabinet Region

Mostly cloudy with a slight chance of snow. Slight chance of rain in the afternoon. Chance of precipitation 20 percent. Highs in the 40s. Northeast Winds 15 to 20 Mph.

Tonight 13 Oct Kootenai/Cabinet Region

Mostly cloudy early in the evening then clearing. Widespread frost in the late evening and overnight. Lows 15 to 22.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Kilbrennan Lake Temperature Statistics

October Temperature

Boundary County Airport (20.5 miles)

  • Lowest 6 October, 2025

    30.2 °F

  • Average October

    51.9 °F

  • Highest 9 October, 2025

    73.4 °F

Climate (2020–Present)

Boundary County Airport (20.5 miles)

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  • Average Low 2020–2025

    37.5 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    56.5 °F
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