S
M
T
W
T
F
S
29
68°
29°
30
60°
30°
31
40°
27°
1
37°
28°
2
32°
29°
3
32°
29°
4
37°
29°
5
45°
31°
6
33°
17°
7
41°
14°
8
53°
33°
9
36°
24°
10
56°
23°
11
48°
36°
12
76°
45°
13
53°
39°
14
57°
37°
15
74°
32°
16
86°
38°
17
47°
27°
18
47°
25°
19
44°
24°
20
72°
23°
21
75°
41°
22
91°
40°
23
76°
40°
24
58°
31°
25
49°
41°
26
51°
35°
27
45°
39°
28
48°
32°
29
50°
29°
30
47°
28°
1
55°
33°
2
66°
42°
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 47° to 66°, with overnight lows between 28° and 42°. The average high for April is 53° with an average low of 33°. 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.