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
46°
38°
7
48°
38°
8
47°
35°
9
47°
40°
10
48°
40°
11
49°
39°
12
52°
41°
13
50°
40°
14
51°
41°
15
51°
42°
16
53°
42°
17
54°
41°
18
53°
42°
19
64°
44°
20
55°
39°
21
54°
40°
22
54°
40°
23
55°
41°
24
56°
39°
25
55°
39°
26
57°
40°
27
57°
41°
28
58°
41°
29
57°
42°
30
57°
41°
31
58°
42°
1
57°
42°
2
59°
43°
3
62°
45°
4
63°
46°
5
61°
46°
6
58°
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 46° to 64°, with overnight lows between 35° and 47°. The average high for May is 55° with an average low of 41°. 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.