S
M
T
W
T
F
S
26
39°
34°
27
46°
32°
28
50°
30°
29
50°
43°
30
61°
43°
1
61°
37°
2
50°
39°
3
48°
36°
4
46°
34°
5
41°
32°
6
46°
32°
7
48°
30°
8
63°
32°
9
59°
41°
10
52°
39°
11
50°
36°
12
59°
30°
13
63°
37°
14
57°
45°
15
61°
48°
16
57°
43°
17
N/A
18
66°
44°
19
68°
45°
20
68°
49°
21
61°
47°
22
58°
49°
23
62°
49°
24
62°
48°
25
61°
47°
26
62°
48°
27
60°
45°
28
57°
43°
29
58°
44°
30
56°
38°
31
60°
39°
1
56°
41°
2
60°
41°
3
60°
39°
4
59°
37°
5
60°
42°
6
60°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Trondheim
Trondheim's May 2026 forecast shows daily high temperatures ranging from 56° to 68°, with overnight lows between 37° and 49°. The average high for May is 61° with an average low of 44°. 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 Trondheim. See also: June | July | August.
