S
M
T
W
T
F
S
29
63°
39°
30
77°
43°
31
70°
36°
1
36°
32°
2
64°
32°
3
46°
34°
4
46°
36°
5
52°
34°
6
46°
30°
7
36°
23°
8
67°
43°
9
60°
40°
10
53°
32°
11
57°
46°
12
72°
56°
13
74°
48°
14
56°
32°
15
43°
35°
16
52°
38°
17
57°
42°
18
63°
43°
19
59°
44°
20
67°
47°
21
59°
38°
22
53°
34°
23
54°
42°
24
54°
44°
25
61°
41°
26
55°
36°
27
54°
37°
28
56°
46°
29
64°
48°
30
66°
48°
1
65°
44°
2
57°
43°
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 43° to 74°, with overnight lows between 32° and 56°. The average high for April is 59° 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 Summit. See also: May | June | July.