S
M
T
W
T
F
S
26
31°
18°
27
36°
17°
28
46°
17°
29
55°
22°
30
60°
23°
1
72°
40°
2
64°
35°
3
71°
37°
4
50°
29°
5
51°
24°
6
55°
34°
7
70°
38°
8
63°
35°
9
59°
37°
10
62°
38°
11
63°
40°
12
63°
39°
13
65°
41°
14
66°
40°
15
58°
39°
16
59°
45°
17
58°
40°
18
61°
41°
19
66°
40°
20
60°
40°
21
61°
46°
22
62°
45°
23
62°
43°
24
63°
40°
25
64°
47°
26
72°
48°
27
72°
48°
28
73°
45°
29
64°
40°
30
63°
44°
31
66°
50°
1
64°
50°
2
67°
49°
3
66°
50°
4
66°
50°
5
65°
51°
6
65°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Moose Jaw
Moose Jaw's May 2026 forecast shows daily high temperatures ranging from 50° to 73°, with overnight lows between 24° and 51°. The average high for May is 64° with an average low of 42°. 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 Moose Jaw. See also: June | July | August.