S
M
T
W
T
F
S
29
68°
34°
30
64°
32°
31
48°
30°
1
42°
28°
2
33°
31°
3
35°
28°
4
38°
30°
5
49°
26°
6
37°
22°
7
43°
14°
8
54°
35°
9
44°
34°
10
54°
30°
11
48°
27°
12
82°
46°
13
59°
46°
14
57°
44°
15
66°
32°
16
75°
55°
17
70°
27°
18
39°
24°
19
50°
27°
20
63°
39°
21
70°
42°
22
68°
44°
23
66°
41°
24
59°
36°
25
54°
34°
26
56°
32°
27
60°
37°
28
62°
36°
29
61°
37°
30
63°
40°
1
56°
38°
2
63°
40°
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 39° to 75°, with overnight lows between 24° and 55°. The average high for April is 61° with an average low of 37°. 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.
