S
M
T
W
T
F
S
26
51°
36°
27
47°
37°
28
47°
32°
29
48°
28°
30
47°
31°
1
43°
36°
2
49°
37°
3
50°
39°
4
45°
39°
5
54°
37°
6
47°
40°
7
49°
38°
8
47°
39°
9
45°
36°
10
46°
38°
11
53°
38°
12
47°
40°
13
57°
38°
14
54°
41°
15
52°
40°
16
53°
42°
17
51°
41°
18
51°
42°
19
50°
39°
20
52°
40°
21
53°
41°
22
54°
42°
23
51°
42°
24
52°
43°
25
54°
42°
26
53°
43°
27
74°
56°
28
63°
47°
29
65°
46°
30
65°
45°
31
58°
44°
1
59°
43°
2
64°
45°
3
65°
47°
4
62°
47°
5
60°
49°
6
60°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Thompson
Thompson's May 2026 forecast shows daily high temperatures ranging from 50° to 74°, with overnight lows between 39° and 56°. The average high for May is 57° 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 Thompson. See also: June | July | August.