Troy Airport Weather Forecast

    • 42
    • 75

    Increasing Clouds

    • 44
    • 78

    Mostly Sunny

    • 47
    • 82

    Partly Sunny

    • 45
    • 78

    Partly Sunny

    • 43
    • 70

    Chance Rain

    • 42
    • 69

    Chance Rain

Today 21 May Kootenai/Cabinet Region

Mostly sunny. Highs in the upper 60s to mid 70s.

Tonight 21 May Kootenai/Cabinet Region

Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 30s to mid 40s.

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Troy Airport Temperature Statistics

May Temperature

Boundary County Airport (24.2 miles)

  • Lowest 17 May, 2026

    37.4 °F

  • Average May

    56.1 °F

  • Highest 12 May, 2026

    77 °F

Climate (2021–Present)

Boundary County Airport (24.2 miles)

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  • Average Low 2021–2026

    37.9 °F

  • Average 2021–2026

    47.4 °F

  • Average High 2021–2026

    56.8 °F
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