S
M
T
W
T
F
S
26
50°
35°
27
47°
33°
28
54°
32°
29
57°
27°
30
59°
31°
1
68°
31°
2
71°
31°
3
66°
41°
4
61°
40°
5
58°
33°
6
57°
33°
7
67°
42°
8
69°
39°
9
65°
38°
10
65°
39°
11
70°
40°
12
77°
42°
13
77°
43°
14
79°
45°
15
74°
43°
16
65°
36°
17
67°
40°
18
70°
37°
19
59°
32°
20
63°
33°
21
69°
36°
22
72°
44°
23
72°
43°
24
63°
39°
25
70°
40°
26
72°
43°
27
73°
42°
28
63°
40°
29
62°
38°
30
64°
37°
31
67°
38°
1
67°
39°
2
70°
40°
3
73°
42°
4
72°
44°
5
75°
41°
6
76°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Marion
Marion's May 2026 forecast shows daily high temperatures ranging from 57° to 79°, with overnight lows between 32° and 46°. The average high for May is 68° 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 May weather will actually feel in Marion. See also: June | July | August.
