S
M
T
W
T
F
S
26
77°
55°
27
70°
48°
28
66°
46°
29
81°
59°
30
77°
57°
1
64°
52°
2
64°
43°
3
70°
34°
4
79°
37°
5
77°
46°
6
72°
59°
7
79°
48°
8
70°
45°
9
73°
46°
10
81°
52°
11
72°
54°
12
70°
45°
13
77°
41°
14
72°
48°
15
73°
36°
16
82°
46°
17
88°
55°
18
88°
61°
19
90°
61°
20
89°
63°
21
80°
58°
22
67°
59°
23
76°
65°
24
81°
65°
25
77°
66°
26
75°
65°
27
77°
64°
28
75°
64°
29
79°
63°
30
78°
62°
31
75°
59°
1
82°
63°
2
82°
64°
3
81°
64°
4
77°
63°
5
76°
59°
6
80°
64°
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 67° to 90°, with overnight lows between 58° and 66°. The average high for May is 79° with an average low of 63°. 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.
