S
M
T
W
T
F
S
29
63°
41°
30
81°
52°
31
69°
41°
1
43°
40°
2
72°
49°
3
64°
51°
4
61°
35°
5
52°
37°
6
52°
36°
7
44°
33°
8
57°
44°
9
71°
53°
10
59°
46°
11
60°
44°
12
59°
45°
13
62°
49°
14
59°
41°
15
60°
41°
16
55°
38°
17
53°
43°
18
63°
46°
19
66°
50°
20
68°
52°
21
68°
52°
22
69°
53°
23
69°
53°
24
70°
52°
25
69°
48°
26
62°
40°
27
55°
40°
28
59°
48°
29
59°
46°
30
60°
45°
1
61°
47°
2
65°
53°
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 72°, with overnight lows between 33° and 53°. The average high for April is 61° with an average low of 45°. 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.