Downtown (Kennewick) Weather Forecast

    • 38
    • 63

    Mostly Sunny

    • 43
    • 63

    Partly Sunny

    • 47
    • 65

    Mostly Cloudy

    • 47
    • 65

    Rain Likely

    • 43
    • 62

    Rain Likely

    • 39
    • 56

    Chance Rain

    • 38
    • 56

    Chance Rain

Today 21 Oct Lower Columbia Basin of Washington

Mostly sunny. Highs in the lower 60s. Light Wind, becoming north 5 to 10 Mph in the afternoon.

Tonight 21 Oct Lower Columbia Basin of Washington

Mostly clear. Lows in the mid to upper 30s. North wind 5 to 10 Mph.

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  • Temperature Real-Time

Downtown (Kennewick) Temperature Statistics

October Temperature

Tri-Cities Airport (3.7 miles)

  • Lowest 15 October, 2025

    28.9 °F

  • Average October

    54.6 °F

  • Highest 8 October, 2025

    78.1 °F

Climate (2020–Present)

Tri-Cities Airport (3.7 miles)

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  • Average Low 2020–2025

    42.8 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    67.8 °F
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