Pasco Weather Forecast

    • 49
    • 73

    Decreasing Clouds

    • 46
    • 68

    Mostly Cloudy

    • 43
    • 65

    Partly Sunny

    • 46
    • 69

    Partly Sunny

    • 48
    • 74

    Partly Sunny

    • 50
    • 76

    Partly Sunny

Today 14 May Lower Columbia Basin of Washington

Sunny in the Morning, becoming partly cloudy. Highs in the upper 60s to lower 70s. Windy. Southwest wind 15 to 25 Mph.

Tonight 14 May Lower Columbia Basin of Washington

Mostly cloudy in the evening then clearing. Lows in the lower to mid 40s. Breezy. West wind 10 to 20 Mph with Gusts to around 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Pasco Temperature Statistics

May Temperature

Tri-Cities Airport (1.9 miles)

  • Lowest 1 May, 2026

    38.6 °F

  • Average May

    66.2 °F

  • Highest 2 May, 2026

    90.6 °F

Climate (2021–Present)

Tri-Cities Airport (1.9 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    55.7 °F

  • Average High 2021–2026

    68.1 °F
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