S
M
T
W
T
F
S
29
72°
38°
30
78°
61°
31
82°
66°
1
83°
67°
2
80°
67°
3
81°
67°
4
76°
44°
5
62°
39°
6
70°
35°
7
64°
41°
8
77°
44°
9
78°
59°
10
80°
54°
11
77°
55°
12
82°
55°
13
81°
69°
14
86°
67°
15
84°
67°
16
82°
57°
17
85°
56°
18
74°
43°
19
67°
37°
20
70°
44°
21
78°
50°
22
80°
48°
23
82°
50°
24
74°
56°
25
81°
53°
26
81°
59°
27
86°
61°
28
78°
56°
29
72°
46°
30
68°
47°
1
64°
45°
2
65°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Grantsburg
Grantsburg's April 2026 forecast shows daily high temperatures ranging from 64° to 86°, with overnight lows between 44° and 61°. The average high for April is 74° with an average low of 52°. 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 Grantsburg. See also: May | June | July.
