S
M
T
W
T
F
S
29
50°
37°
30
52°
32°
31
59°
34°
1
52°
41°
2
54°
39°
3
59°
37°
4
66°
37°
5
70°
46°
6
75°
41°
7
61°
31°
8
67°
34°
9
71°
40°
10
73°
49°
11
60°
46°
12
57°
42°
13
58°
44°
14
58°
44°
15
57°
41°
16
58°
42°
17
64°
43°
18
60°
42°
19
61°
43°
20
62°
41°
21
60°
38°
22
56°
37°
23
56°
36°
24
64°
39°
25
61°
38°
26
61°
38°
27
65°
39°
28
65°
41°
29
64°
40°
30
66°
44°
1
68°
47°
2
67°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Cowlitz
Cowlitz's April 2026 forecast shows daily high temperatures ranging from 56° to 73°, with overnight lows between 31° and 49°. The average high for April is 62° with an average low of 41°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Cowlitz. See also: May | June | July.
