S
M
T
W
T
F
S
26
58°
47°
27
68°
42°
28
65°
51°
29
64°
54°
30
72°
49°
1
68°
42°
2
62°
49°
3
64°
42°
4
77°
46°
5
88°
64°
6
78°
57°
7
60°
45°
8
69°
51°
9
73°
50°
10
80°
62°
11
70°
52°
12
66°
47°
13
72°
55°
14
76°
60°
15
79°
61°
16
81°
61°
17
82°
60°
18
75°
57°
19
79°
62°
20
78°
62°
21
79°
61°
22
76°
54°
23
70°
54°
24
70°
55°
25
71°
57°
26
73°
56°
27
72°
55°
28
72°
58°
29
73°
56°
30
73°
61°
31
76°
65°
1
79°
64°
2
75°
61°
3
75°
63°
4
80°
65°
5
80°
66°
6
83°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Triangle
Triangle's May 2026 forecast shows daily high temperatures ranging from 60° to 88°, with overnight lows between 45° and 66°. The average high for May is 75° with an average low of 58°. 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 Triangle. See also: June | July | August.
