Pasco Weather Forecast

    • 44
    • 53

    Rain

    • 43
    • 55

    Mostly Cloudy

    • 44
    • 54

    Rain Likely

    • 49
    • 58

    Chance Rain

    • 44
    • 57

    Rain Likely

    • 43
    • 55

    Chance Rain

Today 5 Dec Lower Columbia Basin of Washington

Rain in the Morning, then a chance of rain in the afternoon. Highs in the upper 40s to mid 50s. South wind 5 to 15 Mph. Gusts up to 35 Mph in the afternoon. Chance of precipitation 90 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 5 Dec Lower Columbia Basin of Washington

Partly cloudy with a 20 percent chance of rain. Lows in the upper 30s to lower 40s. Windy. Southwest wind 20 to 30 Mph with Gusts to around 45 Mph.

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Pasco Temperature Statistics

December Temperature

Tri-Cities Airport (1.9 miles)

  • Lowest 1 December, 2025

    24.1 °F

  • Average December

    32.2 °F

  • Highest 2 December, 2025

    37 °F

Climate (2020–Present)

Tri-Cities Airport (1.9 miles)

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  • Average Low 2020–2025

    43 °F

  • Average 2020–2025

    55.5 °F

  • Average High 2020–2025

    67.9 °F
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