S
M
T
W
T
F
S
31
83°
71°
1
86°
69°
2
82°
68°
3
79°
60°
4
82°
54°
5
85°
58°
6
86°
64°
7
88°
69°
8
86°
73°
9
86°
71°
10
90°
68°
11
93°
69°
12
93°
74°
13
94°
74°
14
92°
75°
15
89°
71°
16
77°
72°
17
82°
71°
18
89°
71°
19
80°
71°
20
88°
70°
21
85°
71°
22
91°
72°
23
N/A
24
88°
66°
25
85°
71°
26
91°
72°
27
91°
73°
28
93°
72°
29
94°
71°
30
92°
72°
1
90°
70°
2
91°
71°
3
93°
71°
4
91°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
June Weather in Sumter
Sumter's June 2026 forecast shows daily high temperatures ranging from 85° to 94°, with overnight lows between 66° and 73°. The average high for June is 91° 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.
