Kennewick Weather Forecast

    • 56
    • 63

    Chance Rain

    • 49
    • 72

    Mostly Cloudy

    • 51
    • 76

    Partly Sunny

    • 50
    • 75

    Rain Likely

    • 45
    • 65

    Slight Chance Rain

    • 39
    • 60

    Partly Sunny

    • 42
    • 60

    Partly Sunny

Today 23 Mar Lower Columbia Basin of Washington

Mostly cloudy with a 50 percent chance of rain. Highs in the upper 50s to mid 60s. Breezy. South wind 10 to 20 Mph. Gusts up to 20 Mph increasing to 35 Mph in the afternoon. Rainfall Amounts less than a quarter of an inch.

Tonight 23 Mar Lower Columbia Basin of Washington

Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the lower to mid 50s. Windy. Southwest wind 15 to 25 Mph with Gusts to around 35 Mph.

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Kennewick Temperature Statistics

March Temperature

Tri-Cities Airport (3.7 miles)

  • Lowest 6 March, 2025

    24.9 °F

  • Average March

    47.3 °F

  • Highest 8 March, 2025

    66 °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

    67.7 °F
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