Tri-Cities Airport Weather Forecast

    • 56
    • 93

    Decreasing Clouds

    • 61
    • 96

    Patchy Smoke

    • 62
    • 97

    Slight Chance Thunderstorms

    • 53
    • 93

    Slight Chance Thunderstorms

    • 52
    • 86

    Mostly Sunny

    • 56
    • 90

    Mostly Sunny

    • 57
    • 92

    Mostly Sunny

Today 19 Aug Lower Columbia Basin of Washington

Partly cloudy. Highs in the lower to mid 90s. Southwest wind 5 to 10 Mph.

Tonight 19 Aug Lower Columbia Basin of Washington

Mostly clear. Patchy smoke overnight. Lows in the upper 50s to lower 60s. Light wind.

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Tri-Cities Airport Temperature Statistics

August Temperature

Tri-Cities Airport (0 miles)

  • Lowest 5 August, 2026

    47.6 °F

  • Average August

    74.1 °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

    67.9 °F
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