Tri-Cities Airport Weather Forecast

    • 53
    • 87

    Blowing Dust

    • 51
    • 78

    Mostly Cloudy

    • 49
    • 77

    Rain Showers Likely

    • 46
    • 70

    Slight Chance Rain Showers

    • 47
    • 74

    Mostly Sunny

    • 49
    • 77

    Mostly Sunny

Today 10 Sep Lower Columbia Basin of Washington

Mostly cloudy. Patchy blowing dust. Highs in the 80s. West wind 5 to 10 Mph with Gusts to around 20 Mph.

Tonight 10 Sep Lower Columbia Basin of Washington

Mostly cloudy in the evening then clearing. Patchy blowing dust in the evening. Lows in the upper 40s to lower 50s. West wind 5 to 15 Mph with Gusts to around 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tri-Cities Airport Temperature Statistics

September Temperature

Tri-Cities Airport (0 miles)

  • Lowest 4 September, 2026

    46.7 °F

  • Average September

    65.6 °F

  • Highest 1 September, 2026

    85.6 °F

Climate (2021–2026)

Tri-Cities Airport (0 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    67.9 °F
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