S
M
T
W
T
F
S
26
49°
30°
27
51°
31°
28
52°
33°
29
60°
29°
30
66°
28°
1
71°
30°
2
72°
36°
3
73°
33°
4
65°
47°
5
59°
33°
6
67°
29°
7
68°
44°
8
70°
38°
9
70°
43°
10
73°
37°
11
74°
41°
12
76°
36°
13
65°
43°
14
50°
39°
15
51°
36°
16
46°
30°
17
47°
29°
18
56°
31°
19
57°
36°
20
62°
37°
21
62°
36°
22
60°
37°
23
61°
37°
24
63°
35°
25
68°
36°
26
70°
41°
27
63°
35°
28
56°
34°
29
57°
32°
30
62°
40°
31
59°
39°
1
64°
39°
2
63°
40°
3
59°
35°
4
59°
37°
5
58°
34°
6
57°
33°
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 46° to 70°, with overnight lows between 29° and 41°. The average high for May is 59° with an average low of 36°. 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.
