Tri-Cities Airport Weather Forecast

    • 36
    • 65

    Decreasing Clouds

    • 36
    • 68

    Partly Sunny

    • 37
    • 68

    Partly Sunny

    • 37
    • 65

    Chance Rain Showers

    • 30
    • 63

    Mostly Sunny

    • 31
    • 58

    Chance Rain Showers

    • 31
    • 60

    Slight Chance Rain Showers

Today 19 Oct Lower Columbia Basin of Washington

Mostly sunny. Highs in the mid to upper 50s.

Tonight 19 Oct Lower Columbia Basin of Washington

Mostly cloudy. Lows in the upper 30s to lower 40s. Light wind.

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  • Temperature Real-Time

Tri-Cities Airport Temperature Statistics

October Temperature

Tri-Cities Airport (0 miles)

  • Lowest 13 October, 2026

    29.6 °F

  • Average October

    57.1 °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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