S
M
T
W
T
F
S
29
64°
49°
30
79°
57°
31
83°
60°
1
83°
59°
2
82°
60°
3
82°
59°
4
N/A
5
75°
49°
6
68°
46°
7
76°
49°
8
73°
51°
9
75°
52°
10
77°
54°
11
80°
56°
12
81°
58°
13
83°
58°
14
86°
59°
15
85°
60°
16
86°
59°
17
83°
59°
18
84°
51°
19
79°
56°
20
80°
57°
21
81°
57°
22
81°
56°
23
80°
58°
24
81°
58°
25
81°
57°
26
82°
58°
27
82°
58°
28
81°
57°
29
81°
58°
30
80°
58°
1
81°
57°
2
80°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Sumter
Sumter's April 2026 forecast shows daily high temperatures ranging from 68° to 86°, with overnight lows between 46° and 60°. The average high for April is 80° with an average low of 56°. 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.