S
M
T
W
T
F
S
29
49°
20°
30
67°
37°
31
76°
51°
1
75°
46°
2
45°
37°
3
67°
37°
4
68°
39°
5
57°
37°
6
52°
32°
7
48°
21°
8
47°
27°
9
51°
39°
10
64°
44°
11
66°
37°
12
61°
42°
13
60°
46°
14
63°
44°
15
56°
40°
16
59°
42°
17
58°
42°
18
59°
36°
19
54°
40°
20
56°
41°
21
64°
41°
22
62°
42°
23
56°
42°
24
61°
41°
25
65°
38°
26
56°
36°
27
56°
36°
28
58°
38°
29
58°
36°
30
57°
36°
1
57°
40°
2
59°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in South Killingly
South Killingly's April 2026 forecast shows daily high temperatures ranging from 47° to 66°, with overnight lows between 21° and 46°. The average high for April is 58° with an average low of 38°. 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 South Killingly. See also: May | June | July.