West Pasco Weather Forecast

    • 47
    • 70

    Partly Sunny

    • 54
    • 71

    Partly Sunny

    • 50
    • 73

    Partly Sunny

    • 52
    • 77

    Slight Chance Rain Showers

    • 51
    • 79

    Mostly Sunny

    • 57
    • 85

    Partly Sunny

Today 20 May Lower Columbia Basin of Washington

Partly cloudy. Highs in the mid 60s to lower 70s. Southwest wind 5 to 15 Mph with Gusts to around 25 Mph.

Tonight 20 May Lower Columbia Basin of Washington

Partly cloudy. Lows in the lower to mid 40s. West wind 5 to 15 Mph.

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West Pasco Temperature Statistics

May Temperature

Tri-Cities Airport (3.1 miles)

  • Lowest 4 May, 2025

    34.6 °F

  • Average May

    58.9 °F

  • Highest 2 May, 2025

    86.6 °F

Climate (2020–Present)

Tri-Cities Airport (3.1 miles)

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  • Average Low 2020–2025

    42.9 °F

  • Average 2020–2025

    55.5 °F

  • Average High 2020–2025

    67.8 °F
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