S
M
T
W
T
F
S
26
51°
39°
27
51°
38°
28
53°
31°
29
57°
30°
30
55°
36°
1
55°
32°
2
69°
44°
3
68°
49°
4
70°
38°
5
57°
34°
6
51°
34°
7
63°
39°
8
70°
44°
9
71°
46°
10
66°
43°
11
70°
47°
12
70°
45°
13
69°
46°
14
70°
46°
15
63°
47°
16
64°
51°
17
64°
47°
18
72°
52°
19
75°
54°
20
74°
54°
21
68°
47°
22
64°
44°
23
64°
44°
24
65°
46°
25
66°
48°
26
65°
48°
27
67°
50°
28
66°
46°
29
69°
56°
30
78°
51°
31
69°
57°
1
78°
58°
2
75°
58°
3
70°
57°
4
72°
58°
5
71°
56°
6
71°
56°
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 51° to 78°, with overnight lows between 32° and 58°. The average high for May is 68° with an average low of 48°. 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.
