S
M
T
W
T
F
S
26
61°
31°
27
65°
34°
28
68°
36°
29
73°
37°
30
77°
40°
1
78°
44°
2
79°
46°
3
82°
49°
4
83°
50°
5
83°
51°
6
86°
51°
7
84°
50°
8
83°
49°
9
78°
46°
10
82°
47°
11
81°
46°
12
81°
49°
13
80°
50°
14
70°
42°
15
70°
42°
16
71°
43°
17
69°
43°
18
66°
44°
19
66°
45°
20
67°
46°
21
65°
43°
22
64°
41°
23
66°
41°
24
68°
44°
25
71°
44°
26
75°
48°
27
76°
51°
28
73°
47°
29
68°
44°
30
71°
47°
31
70°
50°
1
67°
46°
2
68°
45°
3
74°
49°
4
68°
47°
5
68°
45°
6
75°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Trail
Trail's May 2026 forecast shows daily high temperatures ranging from 64° to 86°, with overnight lows between 41° and 52°. The average high for May is 74° with an average low of 46°. 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.
