S
M
T
W
T
F
S
26
80°
52°
27
68°
58°
28
64°
54°
29
62°
46°
30
64°
39°
1
60°
43°
2
59°
42°
3
70°
42°
4
72°
55°
5
66°
46°
6
60°
44°
7
65°
40°
8
68°
50°
9
78°
53°
10
71°
48°
11
74°
44°
12
80°
52°
13
72°
53°
14
71°
45°
15
80°
54°
16
73°
66°
17
84°
66°
18
76°
64°
19
79°
60°
20
67°
54°
21
67°
51°
22
67°
58°
23
74°
60°
24
81°
59°
25
81°
54°
26
82°
61°
27
82°
62°
28
83°
61°
29
77°
58°
30
80°
57°
31
77°
59°
1
79°
56°
2
84°
57°
3
82°
59°
4
83°
62°
5
83°
62°
6
85°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Donnellson
Donnellson's May 2026 forecast shows daily high temperatures ranging from 77° to 85°, with overnight lows between 56° and 62°. The average high for May is 81° with an average low of 59°. 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 Donnellson. See also: June | July | August.
