S
M
T
W
T
F
S
26
54°
28°
27
43°
36°
28
45°
28°
29
43°
27°
30
45°
27°
1
52°
25°
2
64°
30°
3
70°
34°
4
50°
30°
5
37°
28°
6
41°
27°
7
54°
23°
8
61°
30°
9
54°
34°
10
52°
28°
11
64°
32°
12
61°
36°
13
72°
32°
14
77°
55°
15
76°
54°
16
54°
39°
17
55°
37°
18
48°
39°
19
45°
36°
20
36°
32°
21
67°
42°
22
63°
45°
23
57°
45°
24
77°
75°
25
77°
58°
26
90°
55°
27
85°
58°
28
90°
59°
29
N/A
30
84°
59°
31
82°
60°
1
80°
59°
2
86°
61°
3
81°
58°
4
75°
53°
5
70°
51°
6
71°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Trail
Trail's May 2026 forecast shows daily high temperatures ranging from 70° to 86°, with overnight lows between 51° and 61°. The average high for May is 79° 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 Trail. See also: June | July | August.
