S
M
T
W
T
F
S
26
77°
57°
27
74°
48°
28
66°
46°
29
66°
49°
30
63°
43°
1
55°
36°
2
63°
43°
3
66°
43°
4
65°
47°
5
72°
49°
6
66°
49°
7
65°
44°
8
66°
43°
9
67°
44°
10
66°
45°
11
71°
54°
12
73°
54°
13
77°
51°
14
69°
49°
15
67°
46°
16
68°
46°
17
69°
49°
18
70°
52°
19
69°
48°
20
69°
47°
21
71°
48°
22
72°
53°
23
75°
56°
24
78°
51°
25
71°
50°
26
72°
50°
27
73°
52°
28
74°
54°
29
75°
59°
30
74°
57°
31
74°
59°
1
76°
57°
2
78°
56°
3
80°
58°
4
82°
63°
5
87°
62°
6
87°
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 55° to 87°, with overnight lows between 36° and 64°. The average high for May is 71° 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 Dewey. See also: June | July | August.
