S
M
T
W
T
F
S
31
92°
69°
1
95°
67°
2
88°
66°
3
84°
61°
4
85°
56°
5
87°
58°
6
88°
60°
7
88°
74°
8
86°
73°
9
95°
71°
10
93°
70°
11
95°
71°
12
95°
72°
13
96°
71°
14
92°
72°
15
85°
70°
16
72°
70°
17
88°
70°
18
82°
72°
19
92°
72°
20
86°
72°
21
90°
71°
22
87°
70°
23
86°
67°
24
89°
70°
25
86°
70°
26
91°
72°
27
92°
70°
28
94°
73°
29
95°
71°
30
92°
72°
1
90°
70°
2
90°
71°
3
91°
70°
4
90°
71°
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 86° to 95°, with overnight lows between 67° and 73°. The average high for June is 90° with an average low of 71°. 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.
