S
M
T
W
T
F
S
26
78°
29°
27
52°
41°
28
72°
59°
29
74°
34°
30
56°
32°
1
70°
41°
2
62°
35°
3
64°
40°
4
75°
51°
5
73°
57°
6
68°
56°
7
63°
42°
8
65°
41°
9
66°
45°
10
71°
51°
11
67°
47°
12
70°
49°
13
71°
50°
14
72°
53°
15
71°
51°
16
72°
50°
17
75°
52°
18
75°
55°
19
76°
55°
20
78°
54°
21
74°
49°
22
72°
47°
23
70°
47°
24
70°
49°
25
72°
52°
26
74°
49°
27
71°
48°
28
72°
50°
29
74°
51°
30
74°
54°
31
75°
57°
1
76°
59°
2
75°
58°
3
75°
56°
4
76°
55°
5
77°
58°
6
80°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Duff
Duff's May 2026 forecast shows daily high temperatures ranging from 63° to 80°, with overnight lows between 40° and 60°. The average high for May is 72° with an average low of 51°. 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 Duff. See also: June | July | August.
