S
M
T
W
T
F
S
28
75°
60°
29
76°
60°
30
75°
61°
1
75°
60°
2
77°
64°
3
77°
67°
4
78°
64°
5
78°
63°
6
79°
65°
7
82°
68°
8
84°
69°
9
84°
68°
10
80°
67°
11
78°
67°
12
84°
68°
13
80°
64°
14
79°
63°
15
81°
68°
16
82°
69°
17
83°
68°
18
83°
64°
19
80°
69°
20
80°
70°
21
80°
69°
22
79°
69°
23
79°
68°
24
80°
67°
25
79°
65°
26
80°
65°
27
80°
68°
28
80°
64°
29
82°
67°
30
81°
68°
31
84°
69°
1
83°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in New Haven
New Haven's July 2026 forecast shows daily high temperatures ranging from 75° to 84°, with overnight lows between 60° and 70°. The average high for July is 80° with an average low of 66°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in New Haven. See also: August | September | October.
