Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Hermiston, Hermiston Municipal Airport (KHRI)

Lat: 45.82583° N Lon: 119.26111° W Elev: 636.0 ft.

Clear

55°F

13°C

Humidity 87%
Wind Speed ENE 4 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 18 Sep 08:20 AM PDT
Detailed forecast for

Lower Columbia Basin of Oregon

Today
Partly cloudy in the morning then clearing. Highs around 80. Southwest wind 5 to 10 mph with gusts to around 25 mph.
Tonight
Mostly clear. Lows in the lower to mid 50s. Southwest wind 5 to 10 mph.
Saturday
Sunny. Highs in the lower 80s. Southwest wind 5 to 10 mph in the morning, becoming light.
Saturday Night
Mostly clear. Lows in the lower to mid 50s. Light wind.
Sunday
Sunny. Highs in the lower to mid 80s. Light wind.
Sunday Night Through Tuesday Night
Mostly clear. Lows in the 50s. Highs in the upper 70s to mid 80s.
Wednesday Through Thursday
Partly cloudy. Highs in the mid to upper 70s. Lows in the lower to mid 50s.



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401 AM PDT Fri Sep 18 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database