S
M
T
W
T
F
S
29
52°
36°
30
72°
37°
31
75°
39°
1
39°
32°
2
55°
34°
3
72°
37°
4
63°
39°
5
43°
30°
6
46°
28°
7
35°
22°
8
51°
42°
9
67°
38°
10
49°
32°
11
50°
34°
12
66°
58°
13
66°
49°
14
55°
44°
15
49°
33°
16
51°
37°
17
60°
41°
18
60°
38°
19
56°
40°
20
62°
51°
21
60°
46°
22
60°
47°
23
64°
46°
24
61°
42°
25
53°
38°
26
52°
41°
27
53°
39°
28
59°
42°
29
53°
39°
30
54°
45°
1
60°
42°
2
55°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in St. Clair
St. Clair's April 2026 forecast shows daily high temperatures ranging from 35° to 67°, with overnight lows between 22° and 58°. The average high for April is 56° 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 St. Clair. See also: May | June | July.
