S
M
T
W
T
F
S
27
73°
48°
28
74°
50°
29
75°
55°
30
83°
50°
1
87°
59°
2
78°
60°
3
71°
54°
4
76°
51°
5
70°
45°
6
68°
39°
7
80°
40°
8
77°
48°
9
75°
44°
10
64°
49°
11
67°
58°
12
75°
61°
13
84°
58°
14
86°
61°
15
N/A
16
75°
47°
17
55°
33°
18
62°
35°
19
67°
39°
20
68°
38°
21
69°
39°
22
70°
42°
23
67°
43°
24
71°
43°
25
71°
44°
26
65°
41°
27
64°
43°
28
63°
42°
29
64°
37°
30
58°
36°
31
55°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in New Haven
New Haven's October 2026 forecast shows daily high temperatures ranging from 55° to 75°, with overnight lows between 33° and 47°. The average high for October is 65° with an average low of 40°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in New Haven. See also: November | December | January.
