S
M
T
W
T
F
S
30
71°
59°
31
64°
42°
1
55°
40°
2
77°
42°
3
73°
54°
4
55°
51°
5
69°
54°
6
60°
37°
7
55°
35°
8
44°
28°
9
54°
24°
10
57°
43°
11
47°
39°
12
50°
35°
13
63°
29°
14
81°
46°
15
58°
45°
16
59°
38°
17
66°
29°
18
86°
49°
19
85°
60°
20
77°
57°
21
77°
58°
22
66°
48°
23
81°
43°
24
84°
50°
25
74°
61°
26
65°
44°
27
68°
36°
28
81°
37°
29
84°
62°
30
78°
58°
1
82°
56°
2
77°
59°
3
67°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in St. Marys
St. Marys's April 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for April is ° with an average low of °. 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. Marys. See also: May | June | July.