S
M
T
W
T
F
S
26
69°
37°
27
59°
38°
28
61°
44°
29
69°
38°
30
79°
42°
1
73°
46°
2
67°
49°
3
88°
50°
4
75°
49°
5
75°
47°
6
75°
45°
7
72°
43°
8
68°
50°
9
75°
47°
10
77°
48°
11
76°
49°
12
80°
47°
13
80°
49°
14
79°
48°
15
74°
46°
16
69°
45°
17
69°
45°
18
63°
42°
19
63°
41°
20
65°
45°
21
73°
48°
22
70°
46°
23
67°
44°
24
74°
50°
25
69°
45°
26
68°
44°
27
74°
51°
28
74°
51°
29
75°
50°
30
75°
51°
31
76°
52°
1
75°
50°
2
74°
49°
3
73°
46°
4
69°
44°
5
68°
45°
6
67°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Dallas
Dallas's May 2026 forecast shows daily high temperatures ranging from 63° to 88°, with overnight lows between 41° and 52°. The average high for May is 73° with an average low of 47°. 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 Dallas. See also: June | July | August.
