S
M
T
W
T
F
S
26
78°
52°
27
78°
60°
28
65°
55°
29
63°
44°
30
66°
40°
1
62°
43°
2
61°
42°
3
74°
52°
4
75°
57°
5
64°
46°
6
58°
42°
7
59°
43°
8
67°
46°
9
71°
48°
10
70°
50°
11
69°
49°
12
73°
53°
13
73°
55°
14
76°
53°
15
75°
54°
16
78°
60°
17
77°
59°
18
74°
59°
19
78°
58°
20
73°
54°
21
76°
52°
22
70°
51°
23
70°
51°
24
71°
53°
25
69°
53°
26
70°
52°
27
72°
53°
28
73°
57°
29
74°
58°
30
77°
63°
31
75°
60°
1
75°
56°
2
76°
57°
3
78°
60°
4
78°
64°
5
80°
65°
6
79°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Edwardsville
Edwardsville's May 2026 forecast shows daily high temperatures ranging from 58° to 80°, with overnight lows between 42° and 66°. The average high for May is 72° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Edwardsville. See also: June | July | August.
