S
M
T
W
T
F
S
29
38°
36°
30
78°
59°
31
84°
66°
1
85°
63°
2
83°
63°
3
83°
65°
4
78°
42°
5
59°
38°
6
62°
36°
7
52°
36°
8
65°
45°
9
72°
48°
10
76°
52°
11
77°
54°
12
72°
55°
13
69°
49°
14
70°
48°
15
64°
46°
16
66°
41°
17
61°
40°
18
63°
42°
19
68°
45°
20
73°
49°
21
73°
49°
22
72°
48°
23
74°
50°
24
75°
50°
25
75°
49°
26
74°
39°
27
63°
39°
28
63°
41°
29
64°
44°
30
64°
41°
1
65°
41°
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 52° to 83°, with overnight lows between 36° and 65°. The average high for April is 69° 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.