Pasco Weather Forecast

    • 40
    • 62

    Mostly Sunny

    • 38
    • 63

    Mostly Sunny

    • 43
    • 62

    Partly Sunny

    • 46
    • 65

    Mostly Cloudy

    • 47
    • 64

    Rain Showers Likely

    • 44
    • 60

    Rain Showers Likely

    • 39
    • 57

    Chance Rain Showers

Today 20 Oct Lower Columbia Basin of Washington

Sunny. Highs in the upper 50s to lower 60s. Southwest wind 5 to 15 Mph.

Tonight 20 Oct Lower Columbia Basin of Washington

Mostly clear. Lows in the mid to upper 30s. South wind 5 to 10 Mph in the Evening, becoming light.

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Pasco Temperature Statistics

October Temperature

Tri-Cities Airport (1.9 miles)

  • Lowest 15 October, 2025

    28.9 °F

  • Average October

    54.6 °F

  • Highest 8 October, 2025

    78.1 °F

Climate (2020–Present)

Tri-Cities Airport (1.9 miles)

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  • Average Low 2020–2025

    42.8 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    67.8 °F
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