Tri-Cities Airport Weather Forecast

    • 39
    • 52

    Increasing Clouds

    • 38
    • 58

    Rain

    • 36
    • 60

    Chance Rain

    • 37
    • 63

    Mostly Sunny

    • 41
    • 69

    Mostly Sunny

    • 43
    • 72

    Partly Sunny

Today 31 Mar Lower Columbia Basin of Washington

Mostly cloudy. Highs in the lower 50s. Northwest wind 5 to 10 Mph.

Tonight 31 Mar Lower Columbia Basin of Washington

Mostly cloudy. A 20 percent chance of rain overnight. Lows in the upper 30s to lower 40s. South wind 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tri-Cities Airport Temperature Statistics

March Temperature

Tri-Cities Airport (0 miles)

  • Lowest 27 March, 2026

    22.6 °F

  • Average March

    50.4 °F

  • Highest 19 March, 2026

    77.6 °F

Climate (2021–Present)

Tri-Cities Airport (0 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    55.7 °F

  • Average High 2021–2026

    68.1 °F
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