S
M
T
W
T
F
S
29
65°
30°
30
73°
64°
31
81°
57°
1
84°
59°
2
84°
61°
3
79°
63°
4
83°
57°
5
81°
68°
6
65°
49°
7
70°
41°
8
62°
42°
9
69°
47°
10
76°
48°
11
84°
54°
12
83°
55°
13
80°
57°
14
85°
62°
15
89°
62°
16
81°
54°
17
71°
52°
18
74°
54°
19
77°
65°
20
79°
58°
21
81°
58°
22
81°
59°
23
80°
59°
24
81°
58°
25
82°
57°
26
76°
58°
27
81°
57°
28
74°
55°
29
78°
55°
30
74°
51°
1
73°
58°
2
74°
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 62° to 89°, with overnight lows between 41° and 65°. The average high for April is 77° with an average low of 55°. 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.