S
M
T
W
T
F
S
26
80°
57°
27
81°
61°
28
76°
63°
29
78°
50°
30
72°
46°
1
67°
46°
2
63°
39°
3
65°
40°
4
69°
47°
5
74°
51°
6
73°
52°
7
74°
51°
8
76°
52°
9
71°
47°
10
72°
50°
11
73°
52°
12
80°
56°
13
81°
57°
14
81°
55°
15
72°
51°
16
71°
50°
17
73°
50°
18
74°
51°
19
75°
54°
20
77°
55°
21
80°
56°
22
81°
59°
23
82°
59°
24
83°
60°
25
84°
61°
26
83°
60°
27
80°
57°
28
78°
61°
29
78°
59°
30
79°
62°
31
82°
62°
1
83°
63°
2
82°
63°
3
80°
62°
4
80°
63°
5
81°
63°
6
81°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Dewey
Dewey's May 2026 forecast shows daily high temperatures ranging from 63° to 84°, with overnight lows between 39° and 64°. The average high for May is 77° 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 Dewey. See also: June | July | August.
