S
M
T
W
T
F
S
26
75°
41°
27
66°
57°
28
62°
51°
29
60°
42°
30
61°
37°
1
55°
41°
2
57°
38°
3
66°
39°
4
77°
48°
5
58°
47°
6
58°
41°
7
63°
37°
8
62°
45°
9
77°
49°
10
68°
47°
11
69°
45°
12
82°
43°
13
68°
44°
14
71°
41°
15
75°
51°
16
76°
62°
17
84°
64°
18
75°
67°
19
78°
52°
20
65°
47°
21
70°
54°
22
68°
61°
23
76°
57°
24
77°
59°
25
79°
61°
26
78°
59°
27
80°
60°
28
79°
58°
29
77°
55°
30
79°
58°
31
78°
56°
1
82°
61°
2
81°
60°
3
74°
55°
4
73°
53°
5
75°
60°
6
80°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in De Witt
De Witt's May 2026 forecast shows daily high temperatures ranging from 65° to 82°, with overnight lows between 47° and 67°. The average high for May is 76° with an average low of 58°. 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 De Witt. See also: June | July | August.
