Tri-Cities Airport Weather Forecast

    • 36
    • 58

    Mostly Cloudy

    • 39
    • 58

    Chance Rain Showers

    • 37
    • 60

    Partly Sunny

    • 28
    • 58

    Mostly Cloudy

    • 26
    • 54

    Slight Chance Rain Showers

    • 24
    • 52

    Slight Chance Rain Showers

Today 25 Oct Lower Columbia Basin of Washington

Mostly cloudy. Areas of frost and patchy fog in the morning. Highs in the upper 50s to lower 60s. Light Wind, becoming north 5 to 10 Mph in the afternoon.

Tonight 25 Oct Lower Columbia Basin of Washington

Mostly cloudy. A 20 percent chance of rain Showers overnight. Patchy fog overnight. Lows in the mid 30s to lower 40s. North wind 5 to 10 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 °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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