S
M
T
W
T
F
S
29
50°
36°
30
52°
39°
31
63°
43°
1
55°
43°
2
52°
41°
3
61°
41°
4
61°
39°
5
N/A
6
57°
37°
7
64°
41°
8
69°
49°
9
57°
39°
10
58°
41°
11
64°
42°
12
56°
39°
13
57°
38°
14
57°
40°
15
57°
42°
16
56°
41°
17
57°
42°
18
54°
42°
19
52°
39°
20
53°
41°
21
58°
44°
22
58°
44°
23
59°
43°
24
60°
44°
25
58°
44°
26
56°
42°
27
53°
40°
28
52°
39°
29
53°
40°
30
56°
45°
1
58°
46°
2
57°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Sleaford
Sleaford's April 2026 forecast shows daily high temperatures ranging from 52° to 69°, with overnight lows between 37° and 49°. The average high for April is 57° with an average low of 42°. 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 Sleaford. See also: May | June | July.