Heavy Rainfall and Severe Thunderstorms in the Midwest and Southwest; Heat Continues in the Southern U.S.

Heavy to excessive rainfall could bring flooding today through Thursday across parts of the central Plains into the Midwest and southern Arizona and New Mexico. Scattered strong to severe thunderstorms may impact parts of eastern Nebraska into western Iowa later today into early evening. Heat Advisories remain in place across much of east Texas into the mid-Mississippi Valley today and Tuesday. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

Lat: 46.26955° N Lon: 119.11813° W Elev: 397.0 ft.

Clear

55°F

13°C

Humidity 82%
Wind Speed S 4 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 14 Sep 07:35 AM PDT
Detailed forecast for

Lower Columbia Basin of Washington

Today
Sunny. Highs in the upper 60s to lower 70s. Southwest wind 5 to 10 mph with gusts to around 20 mph.
Tonight
Partly cloudy. Lows in the mid to upper 40s. Light wind.
Tuesday
Mostly cloudy. Highs in the upper 60s to lower 70s. Light wind.
Tuesday Night
Mostly cloudy. Lows in the mid 40s to lower 50s. North wind 5 to 10 mph.
Wednesday
Sunny. Highs in the mid to upper 70s. North wind 5 to 10 mph with gusts to around 20 mph.
Wednesday Night And Thursday
Clear. Lows in the upper 40s to lower 50s. Highs in the lower 70s to lower 80s.
Thursday Night
Mostly clear with a 20 percent chance of rain showers. Lows in the lower to mid 50s.
Friday Through Sunday
Mostly clear. Highs in the upper 70s to lower 80s. Lows in the upper 40s to mid 50s.



Basemap Options
Click map to change the forecast location
Loading map...
401 AM PDT Mon Sep 14 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database