S
M
T
W
T
F
S
26
77°
56°
27
70°
59°
28
73°
58°
29
65°
53°
30
62°
43°
1
60°
42°
2
55°
38°
3
66°
51°
4
74°
57°
5
68°
50°
6
60°
42°
7
58°
41°
8
63°
47°
9
67°
48°
10
70°
50°
11
71°
52°
12
71°
52°
13
70°
50°
14
69°
53°
15
73°
58°
16
74°
57°
17
74°
59°
18
79°
59°
19
77°
58°
20
78°
60°
21
81°
60°
22
80°
59°
23
77°
58°
24
74°
58°
25
78°
61°
26
78°
61°
27
76°
60°
28
75°
61°
29
76°
57°
30
75°
58°
31
80°
62°
1
79°
62°
2
83°
63°
3
83°
61°
4
77°
56°
5
76°
56°
6
76°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Jasper
Jasper's May 2026 forecast shows daily high temperatures ranging from 55° to 83°, with overnight lows between 38° and 63°. The average high for May is 73° with an average low of 55°. 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 Jasper. See also: June | July | August.