S
M
T
W
T
F
S
31
72°
64°
1
86°
66°
2
77°
57°
3
81°
50°
4
86°
56°
5
88°
62°
6
89°
67°
7
91°
69°
8
87°
65°
9
83°
62°
10
85°
65°
11
90°
64°
12
94°
69°
13
92°
68°
14
91°
68°
15
89°
69°
16
92°
77°
17
85°
68°
18
88°
69°
19
90°
70°
20
90°
70°
21
89°
69°
22
91°
70°
23
87°
68°
24
87°
66°
25
90°
70°
26
91°
70°
27
91°
71°
28
89°
71°
29
86°
70°
30
87°
71°
1
86°
68°
2
85°
66°
3
85°
66°
4
86°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Sumter
Sumter's June 2026 forecast shows daily high temperatures ranging from 81° to 94°, with overnight lows between 50° and 77°. The average high for June is 88° with an average low of 67°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Sumter. See also: July | August | September.
