Tri-Cities Airport Weather Forecast

    • 48
    • 79

    Mostly Sunny

    • 53
    • 88

    Mostly Sunny

    • 51
    • 87

    Mostly Cloudy

    • 47
    • 77

    Rain Showers Likely

    • 45
    • 74

    Chance Rain Showers

    • 46
    • 76

    Slight Chance Rain Showers

Today 30 Aug Lower Columbia Basin of Washington

Sunny. Highs in the mid to upper 70s. Southwest wind 5 to 10 Mph. Gusts up to 20 Mph in the afternoon.

Tonight 30 Aug Lower Columbia Basin of Washington

Mostly clear. Lows in the mid 40s to lower 50s. Southwest wind 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tri-Cities Airport Temperature Statistics

August Temperature

Tri-Cities Airport (0 miles)

  • Lowest 5 August, 2026

    47.6 °F

  • Average August

    75.5 °F

  • Highest 7 August, 2026

    102.7 °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

    68 °F
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