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Plan your week in Cowlitz County with our detailed 7-Day Weather Forecast. Access reliable daily temperature highs and lows, rain chances, and weekly weather pattern summaries.

Cowlitz County 7-Day Weather Forecast

Saturday, Oct 24, 2026

Nighttime
40°F

Overcast

Feels like 40°F

Humidity

77%

Wind Speed

3.1 mph

Precipitation

0 in

Pressure

1027 hPa

UV Index

0

Visibility

10 mi

Cloud Cover

91%

Dew Point

31°F

7-Day Weather Forecast

Today

Oct 24

Overcast
55°H
38°L
0%

Sun

Oct 25

Overcast
53°H
43°L
100%

Mon

Oct 26

Overcast
51°H
43°L
100%

Tue

Oct 27

Overcast
49°H
46°L
0%

Wed

Oct 28

Overcast
52°H
44°L
0%

Thu

Oct 29

Overcast
46°H
39°L
0%

Fri

Oct 30

Overcast
42°H
38°L
0%

24-Hour Forecast

8 AM

40°

0%

9 AM

39°

0%

10 AM

39°

0%

11 AM

38°

0%

12 PM

39°

0%

1 PM

39°

0%

2 PM

40°

0%

3 PM

40°

0%

4 PM

42°

0%

5 PM

44°

0%

6 PM

47°

0%

7 PM

50°

0%

8 PM

52°

0%

9 PM

54°

0%

10 PM

55°

0%

11 PM

55°

0%

12 AM

53°

0%

1 AM

48°

0%

2 AM

46°

0%

3 AM

45°

0%

4 AM

44°

0%

5 AM

44°

0%

6 AM

43°

0%

7 AM

44°

0%

Air Quality (AQI)

42Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5

18 µg/m³

PM10

19.7 µg/m³

Sun & Moon Phase

Sunrise

6:00 AM

Sunset

8:00 PM

Moon Phase

Waxing Gibbous

Waxing Gibbous

Wind Conditions & Storm Tracking

Wind Direction

45.1° NE

Sustained Wind

3.1 mph

Wind Gusts

3.1 mph

7-Day Temp Range

Week's Hottest

55°F

Max Rain Prob

100%

Expected 7-Day Swings

38°
55°

High and low limits expected over the next week.

Extended Local Forecasts

14 Day Weather Forecast7 Day Weather ForecastHourly Weather Tracker

Location View

Cowlitz County · 46.15°N, 122.76°W
Radar Page
Coordinates46.1486°N, 122.7611°W
Elevationm
TimezoneAmerica/New_York

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Safety & Environmental Index

MetricValueStatus / Interpretation
Air Quality (AQI)42Good
UV Index0Low Risk
Visibility10 milesClear

Frequently Asked Questions

The 7-day forecast for Cowlitz County includes comprehensive daily weather summaries, max/min temperatures, and expected rainfall to keep you prepared for the week.

About Cowlitz County Climate & Weather

Weather forecast for Cowlitz County is powered by high-resolution weather models using open-source infrastructure. Check current temperatures, rain radar graphs, hourly wind speeds, humidity values, and ultraviolet indexes directly from our weather tracking console.

Meteorological Data: Weather data for this area is aggregated from global and regional forecast models (GFS, HRRR, ERA5) and updated continuously every hour.