S
M
T
W
T
F
S
26
79°
49°
27
82°
61°
28
70°
57°
29
66°
51°
30
64°
42°
1
64°
40°
2
60°
39°
3
72°
55°
4
76°
59°
5
68°
48°
6
59°
42°
7
60°
42°
8
68°
51°
9
69°
52°
10
70°
52°
11
72°
54°
12
73°
53°
13
72°
53°
14
75°
52°
15
73°
58°
16
73°
57°
17
76°
59°
18
78°
59°
19
75°
60°
20
78°
60°
21
79°
59°
22
78°
60°
23
74°
55°
24
73°
57°
25
77°
61°
26
76°
60°
27
73°
55°
28
74°
57°
29
74°
54°
30
75°
60°
31
81°
62°
1
77°
62°
2
82°
64°
3
82°
61°
4
76°
56°
5
75°
56°
6
75°
57°
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 59° to 82°, with overnight lows between 39° and 64°. The average high for May is 73° with an average low of 55°. 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.
