Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Southwest Washington Regional Airport (KKLS)

Lat: 46.11553° N Lon: 122.89273° W Elev: 13.0 ft.

Overcast

54°F

12°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 29.67 in (1004.74 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 12 Apr 01:20 AM PDT
Detailed forecast for

Cowlitz County Lowlands

Overnight
Mostly cloudy. Lows in the mid 40s. Winds light.
Sunday
Mostly cloudy. A chance of showers in the afternoon. Highs in the lower 60s. Northwest wind 5 to 10 mph. Chance of rain 50 percent. Rainfall amounts less than a tenth of an inch.
Sunday Night
Mostly cloudy with a 50 percent chance of showers. Lows in the mid 40s. West wind 5 to 10 mph. Rainfall amounts less than a tenth of an inch.
Monday
A chance of showers in the morning, then showers likely in the afternoon. Highs in the upper 50s. Southwest wind 5 to 10 mph. Chance of rain 70 percent.
Monday Night
Mostly cloudy. A chance of rain showers in the evening, then a chance of rain after midnight. Lows in the lower 40s. West wind 5 to 10 mph, becoming light after midnight. Chance of rain 50 percent.
Tuesday
Rain. Highs in the lower 50s. Chance of rain near 100 percent.
Tuesday Night
Rain. Lows in the upper 30s. Chance of rain near 100 percent.
Wednesday
Rain showers with a slight chance of thunderstorms. Highs in the lower 50s. Chance of rain 90 percent.
Wednesday Night
Mostly cloudy with rain likely. Lows in the mid 30s. Chance of rain 70 percent.
Thursday
Partly sunny with a 50 percent chance of rain. Highs in the mid 50s.
Thursday Night
Partly cloudy. Lows in the mid 30s.
Friday
Partly sunny. Highs in the upper 50s.
Friday Night
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 30s.
Saturday
Partly sunny with a 20 percent chance of rain. Highs in the mid 60s.



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1129 PM PDT Sat Apr 11 2026
 
 

Additional Resources

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