S
M
T
W
T
F
S
31
72°
64°
1
86°
66°
2
77°
57°
3
81°
48°
4
86°
52°
5
88°
57°
6
88°
61°
7
90°
66°
8
91°
68°
9
90°
73°
10
91°
73°
11
97°
72°
12
99°
73°
13
97°
75°
14
99°
73°
15
91°
73°
16
82°
69°
17
84°
72°
18
88°
72°
19
87°
68°
20
89°
62°
21
92°
71°
22
91°
72°
23
93°
71°
24
91°
69°
25
85°
68°
26
88°
69°
27
88°
68°
28
90°
68°
29
91°
69°
30
90°
68°
1
90°
68°
2
88°
70°
3
91°
72°
4
92°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Sumter Southeast
Sumter Southeast's June 2026 forecast shows daily high temperatures ranging from 82° to 93°, with overnight lows between 62° and 72°. The average high for June is 89° with an average low of 69°. 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 Southeast. See also: July | August | September.
