Tri-Cities Airport Weather Forecast

    • 37
    • 70

    Sunny

    • 37
    • 72

    Mostly Sunny

    • 40
    • 70

    Partly Sunny

    • 36
    • 73

    Partly Sunny

    • 36
    • 65

    Partly Sunny

    • 37
    • 63

    Mostly Cloudy

Today 14 Oct Lower Columbia Basin of Washington

Sunny. Highs in the upper 60s to lower 70s. Light wind.

Tonight 14 Oct Lower Columbia Basin of Washington

Mostly clear. Lows in the upper 30s to mid 40s. Light wind.

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Tri-Cities Airport Temperature Statistics

October Temperature

Tri-Cities Airport (0 miles)

  • Lowest 11 October, 2026

    37 °F

  • Average October

    59.3 °F

  • Highest 5 October, 2026

    84.7 °F

Climate (2021–2026)

Tri-Cities Airport (0 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    68 °F
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