Pasco Weather Forecast

    • 67
    • 95

    Mostly Sunny

    • 67
    • 99

    Hot

    • 68
    • 101

    Hot

    • 70
    • 99

    Hot

    • 69
    • 96

    Partly Sunny

    • 64
    • 90

    Partly Sunny

Today 1 Sep Lower Columbia Basin of Washington

Mostly cloudy in the morning then clearing. Haze through the day. Patchy smoke in the afternoon. Highs in the lower to mid 90s. South wind 5 to 10 Mph.

Tonight 1 Sep Lower Columbia Basin of Washington

Mostly clear. Haze. Lows in the lower to mid 60s. Light wind.

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Pasco Temperature Statistics

September Temperature

Tri-Cities Airport (1.9 miles)

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  • Average September

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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

    67.9 °F
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