S
M
T
W
T
F
S
26
88°
45°
27
78°
43°
28
76°
44°
29
69°
37°
30
67°
46°
1
55°
44°
2
73°
42°
3
82°
45°
4
86°
55°
5
66°
43°
6
55°
40°
7
74°
36°
8
81°
50°
9
89°
47°
10
69°
45°
11
81°
42°
12
95°
55°
13
95°
65°
14
93°
59°
15
93°
58°
16
95°
56°
17
96°
55°
18
91°
44°
19
76°
48°
20
77°
51°
21
78°
54°
22
87°
55°
23
84°
56°
24
86°
57°
25
88°
57°
26
81°
54°
27
86°
59°
28
87°
58°
29
85°
59°
30
87°
60°
31
85°
60°
1
85°
59°
2
86°
62°
3
90°
62°
4
90°
61°
5
89°
63°
6
90°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Dumas
Dumas's May 2026 forecast shows daily high temperatures ranging from 76° to 96°, with overnight lows between 44° and 65°. The average high for May is 87° with an average low of 57°. 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 Dumas. See also: June | July | August.
