Preacher Mountain Weather Forecast

    • 41
    • 55

    Increasing Clouds

    • 44
    • 58

    Mostly Cloudy

    • 44
    • 62

    Partly Sunny

    • 44
    • 63

    Mostly Sunny

    • 49
    • 67

    Mostly Sunny

    • 47
    • 65

    Mostly Sunny

Today 30 Sep Kootenai/Cabinet Region

Partly cloudy. Highs in the upper 60s to mid 70s.

Tonight 30 Sep Kootenai/Cabinet Region

Mostly clear early in the evening then becoming mostly cloudy. Areas of fog after midnight. Lows in the 30s to lower 40s.

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Preacher Mountain Temperature Statistics

September Temperature

Boundary County Airport (23 miles)

  • Lowest 27 September, 2026

    32 °F

  • Average September

    56.8 °F

  • Highest 21 September, 2026

    80.6 °F

Climate (2021–2026)

Boundary County Airport (23 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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