S
M
T
W
T
F
S
29
63°
28°
30
68°
46°
31
77°
61°
1
73°
54°
2
82°
52°
3
77°
63°
4
84°
61°
5
66°
43°
6
52°
36°
7
43°
27°
8
57°
23°
9
N/A
10
78°
44°
11
62°
41°
12
79°
63°
13
73°
62°
14
81°
61°
15
86°
61°
16
81°
55°
17
79°
45°
18
70°
44°
19
72°
52°
20
72°
51°
21
68°
50°
22
69°
40°
23
60°
41°
24
70°
48°
25
70°
46°
26
68°
41°
27
60°
39°
28
62°
40°
29
66°
44°
30
70°
49°
1
66°
50°
2
73°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in New Haven
New Haven's April 2026 forecast shows daily high temperatures ranging from 60° to 86°, with overnight lows between 39° and 63°. The average high for April is 71° with an average low of 49°. 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 New Haven. See also: May | June | July.