S
M
T
W
T
F
S
29
67°
26°
30
73°
58°
31
82°
65°
1
80°
53°
2
85°
51°
3
78°
64°
4
85°
51°
5
58°
34°
6
59°
31°
7
47°
25°
8
65°
43°
9
72°
49°
10
80°
53°
11
81°
54°
12
85°
62°
13
81°
58°
14
74°
52°
15
73°
50°
16
74°
49°
17
70°
36°
18
73°
51°
19
71°
50°
20
73°
52°
21
74°
52°
22
75°
53°
23
76°
52°
24
73°
50°
25
66°
44°
26
64°
51°
27
67°
46°
28
65°
46°
29
64°
42°
30
64°
42°
1
67°
45°
2
65°
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 85°, with overnight lows between 25° and 62°. The average high for April is 70° with an average low of 47°. 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.