Tri-Cities Airport Weather Forecast

    • 39
    • 57

    Mostly Cloudy

    • 37
    • 59

    Partly Sunny

    • 30
    • 56

    Mostly Cloudy

    • 35
    • 52

    Mostly Cloudy

    • 32
    • 51

    Partly Sunny

    • 32
    • 50

    Partly Sunny

Today 26 Oct Lower Columbia Basin of Washington

Mostly cloudy. A 20 percent chance of rain Showers in the morning. Patchy fog in the morning. Highs in the mid to upper 50s. Light Wind, becoming southwest 5 to 10 Mph with Gusts to around 20 Mph in the afternoon.

Tonight 26 Oct Lower Columbia Basin of Washington

Mostly cloudy. Lows in the upper 30s to lower 40s. Southwest wind 5 to 10 Mph.

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  • Temperature Forecast NOAA

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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

    54.9 °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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