S
M
T
W
T
F
S
29
54°
18°
30
63°
43°
31
67°
52°
1
57°
37°
2
59°
37°
3
73°
48°
4
77°
51°
5
62°
31°
6
41°
24°
7
33°
20°
8
52°
33°
9
65°
43°
10
66°
43°
11
56°
33°
12
64°
50°
13
73°
53°
14
68°
44°
15
60°
39°
16
50°
31°
17
55°
38°
18
58°
39°
19
59°
33°
20
62°
40°
21
62°
40°
22
64°
41°
23
65°
41°
24
63°
37°
25
55°
32°
26
54°
34°
27
53°
32°
28
55°
37°
29
55°
32°
30
54°
32°
1
57°
35°
2
56°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Summit
Summit's April 2026 forecast shows daily high temperatures ranging from 33° to 73°, with overnight lows between 20° and 53°. The average high for April is 58° 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 Summit. See also: May | June | July.