S
M
T
W
T
F
S
31
68°
50°
1
66°
48°
2
71°
51°
3
77°
55°
4
77°
56°
5
76°
56°
6
70°
55°
7
71°
56°
8
77°
50°
9
70°
47°
10
70°
53°
11
74°
58°
12
79°
57°
13
73°
55°
14
74°
57°
15
79°
55°
16
77°
56°
17
76°
52°
18
73°
51°
19
72°
51°
20
73°
52°
21
77°
60°
22
81°
57°
23
75°
60°
24
74°
56°
25
74°
53°
26
77°
53°
27
79°
56°
28
77°
56°
29
80°
57°
30
77°
53°
1
78°
56°
2
82°
52°
3
75°
52°
4
75°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in New Haven
New Haven's June 2026 forecast shows daily high temperatures ranging from 66° to 82°, with overnight lows between 47° and 60°. The average high for June is 75° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in New Haven. See also: July | August | September.