Cowlitz County, WA Weather Forecast

County weather hub

75°
F

Areas Of Fog then Mostly Sunny

Compare major city weather across Cowlitz County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.

Friday, July 17, 2026
Wind: 0 to 6 mph WNW
Friday

Areas of fog before 8am. Mostly sunny, with a high near 75. West northwest wind 0 to 6 mph.

County weather hub

County Weather Overview

This county weather page brings together forecast coverage for Cowlitz County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.

Current forecast coverage spans 4 of 4 mapped cities in Cowlitz County.

Page Snapshot

Page focus
county weather
Forecast window
Jul 17 to Jul 22, 2026
Latest sync
Jul 16, 2026 7:18 AM PDT
Forecast office
PQR
Source
NOAA / NWS
Next High
75°F
Friday
Next Low
53°F
Friday Night
Rain Outlook
0
Periods mentioning precipitation
Windiest
0 to 7 mph
Saturday

Daily Outlook

Today
Jul 17
Areas Of Fog then Mostly Sunny
75 °F
/ 53°F
Wind 0 to 6 mph
Sat
Jul 18
Patchy Fog then Sunny
77 °F
/ 54°F
Wind 0 to 7 mph
Sun
Jul 19
Sunny
82 °F
/ 57°F
Wind 1 to 7 mph
Mon
Jul 20
Mostly Sunny
85 °F
/ 61°F
Wind 0 to 3 mph
Tue
Jul 21
Mostly Sunny
84 °F
/ 60°F
Wind 0 to 5 mph
Wed
Jul 22
Sunny
84 °F
Wind 0 to 6 mph

This Week in Cowlitz County

Monday looks like the warmest upcoming period in Cowlitz County at 85 degrees F.

Friday Night is the coolest period ahead with temperatures near 53 degrees F.

The strongest winds are forecast for Saturday at about 0 to 7 mph NNW.

The forecast from Jul 17 through Jul 22 stays mostly dry.

Forecast Details

Last updated
Jul 16, 2026 7:18 AM PDT
Coverage
6 days
Time zone
America/Los_Angeles
Forecast office
PQR
Radar station
KRTX

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Friday Night
Jul 17
53°F
Mostly Clear then Areas Of Fog
0 to 6 mph NNW

Areas of fog after 2am. Mostly clear, with a low around 53. North northwest wind 0 to 6 mph.

Saturday
Jul 18
77°F
Patchy Fog then Sunny
0 to 7 mph NNW

Patchy fog before 8am. Sunny, with a high near 77.

Saturday Night
Jul 18
54°F
Mostly Clear
1 to 7 mph NNW

Mostly clear, with a low around 54.

Sunday
Jul 19
82°F
Sunny
1 to 7 mph NNW

Sunny, with a high near 82.

Sunday Night
Jul 19
57°F
Mostly Clear
1 to 7 mph NNW

Mostly clear, with a low around 57.

Monday
Jul 20
85°F
Mostly Sunny
0 to 3 mph NNW

Mostly sunny, with a high near 85.

Monday Night
Jul 20
61°F
Partly Cloudy
0 to 3 mph NNW

Partly cloudy, with a low around 61.

Tuesday
Jul 21
84°F
Mostly Sunny
0 to 5 mph NW

Mostly sunny, with a high near 84.

Tuesday Night
Jul 21
60°F
Partly Cloudy
0 to 5 mph NNW

Partly cloudy, with a low around 60.

Wednesday
Jul 22
84°F
Sunny
0 to 6 mph NW

Sunny, with a high near 84.

Detailed Forecast

Period Conditions Temp Wind
Friday
Jul 17
Areas Of Fog then Mostly Sunny
75°F
0 to 6 mph
WNW
Friday Night
Jul 17
Mostly Clear then Areas Of Fog
53°F
0 to 6 mph
NNW
Saturday
Jul 18
Patchy Fog then Sunny
77°F
0 to 7 mph
NNW
Saturday Night
Jul 18
Mostly Clear
54°F
1 to 7 mph
NNW
Sunday
Jul 19
Sunny
82°F
1 to 7 mph
NNW
Sunday Night
Jul 19
Mostly Clear
57°F
1 to 7 mph
NNW
Monday
Jul 20
Mostly Sunny
85°F
0 to 3 mph
NNW
Monday Night
Jul 20
Partly Cloudy
61°F
0 to 3 mph
NNW
Tuesday
Jul 21
Mostly Sunny
84°F
0 to 5 mph
NW
Tuesday Night
Jul 21
Partly Cloudy
60°F
0 to 5 mph
NNW
Wednesday
Jul 22
Sunny
84°F
0 to 6 mph
NW

Coverage

Tracked cities
4
Coverage
100%

Forecast coverage currently spans 4 of 4 mapped cities in Cowlitz County.

Largest mapped city population in this region: 38,515.

Mount St. Helens3
Mount St. Helens3 image
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.