Downtown (Kennewick) Weather Forecast

    • 48
    • 56

    Rain Likely

    • 51
    • 61

    Rain Likely

    • 46
    • 56

    Rain

    • 43
    • 57

    Chance Rain

    • 41
    • 51

    Slight Chance Rain

    • 39
    • 51

    Mostly Cloudy

Today 7 Dec Lower Columbia Basin of Washington

Rain in the Morning, then a chance of rain in the afternoon. Highs in the lower to mid 50s. South wind 5 to 15 Mph with Gusts to around 25 Mph. Chance of precipitation near 100 percent. Rainfall Amounts less than a quarter of an inch.

Tonight 7 Dec Lower Columbia Basin of Washington

Mostly cloudy with a 20 percent chance of rain. Lows in the lower to mid 40s. Southwest wind 5 to 15 Mph with Gusts to around 25 Mph.

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Downtown (Kennewick) Temperature Statistics

December Temperature

Tri-Cities Airport (3.7 miles)

  • Lowest 1 December, 2025

    24.1 °F

  • Average December

    36.7 °F

  • Highest 5 December, 2025

    55.9 °F

Climate (2020–Present)

Tri-Cities Airport (3.7 miles)

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  • Average Low 2020–2025

    43 °F

  • Average 2020–2025

    55.5 °F

  • Average High 2020–2025

    67.9 °F
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