S
M
T
W
T
F
S
29
70°
28°
30
77°
43°
31
81°
48°
1
86°
59°
2
84°
61°
3
83°
56°
4
84°
62°
5
78°
53°
6
74°
46°
7
71°
43°
8
69°
38°
9
72°
45°
10
72°
47°
11
76°
51°
12
78°
51°
13
77°
53°
14
81°
60°
15
78°
55°
16
79°
54°
17
79°
54°
18
71°
53°
19
73°
54°
20
75°
54°
21
76°
53°
22
79°
56°
23
80°
56°
24
81°
57°
25
81°
58°
26
82°
58°
27
81°
56°
28
75°
54°
29
80°
57°
30
81°
58°
1
78°
57°
2
75°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Sumter
Sumter's April 2026 forecast shows daily high temperatures ranging from 69° to 86°, with overnight lows between 38° and 62°. The average high for April is 78° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Sumter. See also: May | June | July.
