S
M
T
W
T
F
S
26
48°
25°
27
49°
28°
28
48°
28°
29
49°
27°
30
50°
30°
1
51°
26°
2
54°
35°
3
51°
30°
4
51°
34°
5
52°
34°
6
52°
33°
7
53°
31°
8
53°
32°
9
54°
31°
10
53°
29°
11
54°
33°
12
58°
36°
13
59°
32°
14
53°
30°
15
53°
30°
16
54°
29°
17
55°
34°
18
55°
39°
19
56°
36°
20
56°
31°
21
59°
41°
22
67°
41°
23
69°
36°
24
65°
30°
25
57°
33°
26
60°
42°
27
70°
41°
28
72°
41°
29
70°
40°
30
66°
46°
31
73°
40°
1
72°
35°
2
64°
35°
3
64°
34°
4
65°
34°
5
61°
35°
6
61°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Sumpter
Sumpter's May 2026 forecast shows daily high temperatures ranging from 48° to 73°, with overnight lows between 25° and 46°. The average high for May is 58° with an average low of 34°. 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 Sumpter. See also: June | July | August.
