S
M
T
W
T
F
S
26
46°
36°
27
47°
37°
28
50°
38°
29
51°
37°
30
50°
38°
1
49°
39°
2
66°
46°
3
51°
37°
4
50°
35°
5
50°
37°
6
51°
36°
7
51°
35°
8
52°
36°
9
52°
36°
10
53°
37°
11
53°
38°
12
54°
37°
13
56°
41°
14
56°
40°
15
55°
38°
16
60°
42°
17
61°
40°
18
62°
44°
19
61°
45°
20
63°
45°
21
63°
44°
22
62°
44°
23
56°
42°
24
56°
41°
25
57°
42°
26
57°
41°
27
56°
41°
28
56°
42°
29
57°
41°
30
56°
42°
31
56°
42°
1
64°
46°
2
63°
49°
3
65°
49°
4
66°
50°
5
68°
51°
6
69°
49°
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 69°, with overnight lows between 35° and 51°. The average high for May is 57° 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.