Monitoring Tsunami Impacts Across the Pacific; Air Quality Concerns; Dangerous Heat; Critical Fire Weather for the West

Tsunami impacts continue for portions of the Pacific basin. Wildfire smoke causes unhealthy air in Midwest to Great Lakes. Heat dome spans Mississippi Valley to Mid-Atlantic with excessive heat warnings and advisories. Critical fire weather in Great Basin to Pacific Northwest (dry thunderstorms). Cold front spawns severe storms/heavy rain in Central U.S. today, shifts to East Coast Thursday. Read More >

Current conditions at

Chehalis-Centralia Airport (KCLS)

Lat: 46.677° N Lon: 122.9827° W Elev: 177.0 ft.

Clear

86°F

30°C

Humidity 33%
Wind Speed NNE 8 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 54°F (12°C)
Visibility 7.00 mi
Heat Index84°F (29°C)
Last update 30 Jul 03:15 PM PDT
Detailed forecast for

Lowlands of Lewis and Southern Thurston Counties

Tonight
Partly cloudy. Areas of smoke late in the evening. Lows in the lower to mid 50s. Northwest wind around 10 mph becoming west to 10 mph after midnight. Gusts to 20 mph.
Thursday
Partly sunny. Patchy fog in the morning. Highs in the upper 70s to mid 80s. Light wind becoming west to 10 mph in the afternoon.
Thursday Night
Mostly cloudy. Lows in the lower to mid 50s. West wind to 10 mph. Gusts to 20 mph in the evening.
Friday
Mostly cloudy in the morning then becoming mostly sunny. Highs in the upper 70s to mid 80s. Light wind.
Friday Night
Mostly clear. Lows in the lower to mid 50s. West wind to 10 mph in the evening becoming light.
Saturday
Mostly sunny. Patchy fog in the morning. Highs near 80.
Saturday Night
Mostly clear. Lows near 50.
Sunday
Partly sunny. Highs in the mid 70s.
Sunday Night
Partly cloudy. Lows near 50.
Monday
Mostly cloudy in the morning, then mostly sunny with a slight chance of showers in the afternoon. Highs in the lower to mid 70s.
Monday Night
Partly cloudy. Lows near 50.
Tuesday
Patchy fog in the morning. Mostly cloudy with a slight chance of showers. Highs in the mid 70s.
Tuesday Night
Mostly cloudy. Lows in the mid 50s.
Wednesday
Mostly cloudy with a slight chance of showers. Highs in the mid to upper 70s.



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230 PM PDT Wed Jul 30 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database