S
M
T
W
T
F
S
27
78°
56°
28
78°
56°
29
77°
55°
30
76°
54°
1
75°
53°
2
75°
54°
3
74°
54°
4
75°
53°
5
73°
52°
6
73°
52°
7
72°
51°
8
73°
52°
9
73°
52°
10
72°
51°
11
73°
52°
12
69°
44°
13
66°
48°
14
59°
49°
15
62°
48°
16
65°
50°
17
62°
48°
18
68°
42°
19
64°
38°
20
56°
37°
21
55°
41°
22
56°
39°
23
56°
42°
24
58°
46°
25
61°
47°
26
61°
36°
27
62°
33°
28
55°
32°
29
51°
36°
30
52°
35°
31
51°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in New Haven
New Haven's October 2026 forecast shows daily high temperatures ranging from 51° to 78°, with overnight lows between 31° and 56°. The average high for October is 66° with an average low of 46°. 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.
