S
M
T
W
T
F
S
29
73°
57°
30
82°
57°
31
82°
58°
1
85°
58°
2
83°
58°
3
85°
60°
4
83°
60°
5
78°
55°
6
71°
53°
7
80°
51°
8
78°
55°
9
77°
57°
10
79°
57°
11
83°
58°
12
84°
57°
13
86°
58°
14
86°
60°
15
85°
61°
16
85°
60°
17
80°
54°
18
82°
60°
19
83°
59°
20
83°
60°
21
82°
61°
22
84°
60°
23
83°
60°
24
81°
61°
25
83°
60°
26
85°
61°
27
85°
61°
28
84°
60°
29
84°
61°
30
83°
62°
1
84°
62°
2
81°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Grantham
Grantham's April 2026 forecast shows daily high temperatures ranging from 71° to 86°, with overnight lows between 51° and 62°. The average high for April is 82° with an average low of 59°. 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 Grantham. See also: May | June | July.
