West Richland Weather Forecast

    • 65
    • 90

    Partly Sunny

    • 61
    • 89

    Mostly Sunny

    • 61
    • 83

    Rain Showers Likely

    • 57
    • 75

    Chance Rain Showers

    • 58
    • 77

    Partly Sunny

    • 59
    • 81

    Partly Sunny

    • 60
    • 82

    Partly Sunny

Today 6 Sep Lower Columbia Basin of Washington

Mostly cloudy. A chance of Showers and Thunderstorms in the Morning, then a chance of Showers in the afternoon. Haze and Areas of smoke through the day. Highs in the upper 80s to lower 90s. South wind 5 to 10 Mph. Chance of precipitation 50 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 6 Sep Lower Columbia Basin of Washington

Mostly cloudy. A 20 percent chance of Showers in the evening. Areas of smoke in the evening. Haze through the night. Lows in the lower to mid 60s. South wind 5 to 10 Mph.

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West Richland Temperature Statistics

September Temperature

Tri-Cities Airport (11.8 miles)

  • Lowest 3 September, 2025

    57.9 °F

  • Average September

    78.8 °F

  • Highest 2 September, 2025

    99 °F

Climate (2020–Present)

Tri-Cities Airport (11.8 miles)

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  • Average Low 2020–2025

    42.9 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    67.9 °F
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