S
M
T
W
T
F
S
29
52°
36°
30
72°
37°
31
75°
39°
1
39°
32°
2
58°
56°
3
68°
39°
4
66°
40°
5
41°
29°
6
46°
30°
7
37°
22°
8
51°
40°
9
60°
38°
10
54°
42°
11
59°
43°
12
57°
41°
13
56°
38°
14
54°
38°
15
56°
48°
16
48°
32°
17
47°
31°
18
49°
39°
19
58°
45°
20
62°
47°
21
63°
47°
22
64°
48°
23
64°
48°
24
65°
47°
25
66°
46°
26
64°
38°
27
51°
37°
28
51°
39°
29
57°
44°
30
54°
43°
1
55°
41°
2
57°
43°
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 37° to 68°, with overnight lows between 22° and 56°. 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.
