S
M
T
W
T
F
S
26
82°
55°
27
84°
59°
28
62°
50°
29
67°
45°
30
68°
41°
1
69°
45°
2
71°
43°
3
85°
59°
4
84°
60°
5
68°
47°
6
58°
38°
7
68°
45°
8
78°
50°
9
78°
56°
10
72°
54°
11
68°
47°
12
78°
52°
13
83°
57°
14
83°
57°
15
80°
59°
16
88°
65°
17
74°
58°
18
79°
59°
19
79°
57°
20
75°
55°
21
79°
52°
22
73°
51°
23
72°
54°
24
71°
54°
25
73°
53°
26
74°
53°
27
76°
57°
28
76°
59°
29
77°
60°
30
77°
63°
31
78°
61°
1
78°
56°
2
79°
59°
3
80°
64°
4
81°
65°
5
80°
65°
6
80°
66°
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 58° to 88°, with overnight lows between 38° and 66°. The average high for May is 77° with an average low of 56°. 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.
