S
M
T
W
T
F
S
29
71°
37°
30
81°
38°
31
53°
33°
1
43°
33°
2
36°
32°
3
40°
33°
4
38°
32°
5
56°
32°
6
40°
29°
7
46°
37°
8
60°
30°
9
48°
30°
10
55°
34°
11
57°
54°
12
72°
59°
13
69°
41°
14
48°
30°
15
47°
31°
16
61°
41°
17
61°
41°
18
58°
42°
19
61°
45°
20
59°
36°
21
53°
39°
22
53°
41°
23
60°
37°
24
54°
32°
25
63°
44°
26
63°
43°
27
67°
44°
28
66°
40°
29
65°
45°
30
68°
46°
1
67°
44°
2
68°
45°
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 46° to 72°, with overnight lows between 30° and 59°. The average high for April is 60° with an average low of 40°. 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.
