Tri-Cities Airport Weather Forecast

    • 28
    • 63

    Increasing Clouds

    • 28
    • 58

    Increasing Clouds

    • 31
    • 57

    Mostly Cloudy

    • 32
    • 59

    Mostly Cloudy

    • 31
    • 60

    Partly Sunny

    • 28
    • 58

    Partly Sunny

    • 28
    • 55

    Partly Sunny

Today 23 Oct Lower Columbia Basin of Washington

Sunny. Highs in the lower to mid 60s. Northwest wind 5 to 15 Mph.

Tonight 23 Oct Lower Columbia Basin of Washington

Mostly clear. Patchy fog and frost overnight. Lows in the lower to mid 30s. Southwest wind 5 to 10 Mph with Gusts to around 20 Mph in the Evening, becoming light.

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Tri-Cities Airport Temperature Statistics

October Temperature

Tri-Cities Airport (0 miles)

  • Lowest 13 October, 2026

    29.6 °F

  • Average October

    55.4 °F

  • Highest 5 October, 2026

    84.7 °F

Climate (2021–2026)

Tri-Cities Airport (0 miles)

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  • Average Low 2021–2026

    42.7 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    68 °F
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