Tri-Cities Airport Weather Forecast

    • 56
    • 87

    Increasing Clouds

    • 50
    • 79

    Rain Showers Likely

    • 45
    • 73

    Chance Rain Showers

    • 47
    • 73

    Chance Rain Showers

    • 49
    • 77

    Slight Chance Rain Showers

    • 50
    • 80

    Chance Rain Showers

    • 49
    • 77

    Chance Rain Showers

Today 1 Sep Lower Columbia Basin of Washington

Mostly cloudy. Highs in the mid to upper 80s. South wind 5 to 10 Mph.

Tonight 1 Sep Lower Columbia Basin of Washington

Partly cloudy. Lows in the mid to upper 50s. Southwest wind 5 to 15 Mph with Gusts to around 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Tri-Cities Airport Temperature Statistics

September Temperature

Tri-Cities Airport (0 miles)

  • Lowest

    –

  • Average September

    –

  • Highest

    –

Climate (2021–2026)

Tri-Cities Airport (0 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    68 °F
Get WillyWeather+ to remove ads