Tri-Cities Airport Weather Forecast

    • 39
    • 69

    Increasing Clouds

    • 35
    • 72

    Partly Sunny

    • 36
    • 64

    Partly Sunny

    • 35
    • 63

    Mostly Cloudy

    • 33
    • 64

    Mostly Sunny

    • 34
    • 65

    Mostly Sunny

    • 35
    • 64

    Partly Sunny

Today 16 Oct Lower Columbia Basin of Washington

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

Tonight 16 Oct Lower Columbia Basin of Washington

Partly cloudy. Lows in the lower to mid 40s. Light wind.

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Tri-Cities Airport Temperature Statistics

October Temperature

Tri-Cities Airport (0 miles)

  • Lowest 13 October, 2026

    30.9 °F

  • Average October

    57.6 °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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