S
M
T
W
T
F
S
27
74°
43°
28
74°
48°
29
77°
47°
30
74°
53°
1
87°
65°
2
69°
50°
3
67°
46°
4
76°
44°
5
68°
44°
6
70°
40°
7
82°
48°
8
73°
46°
9
74°
44°
10
76°
50°
11
64°
51°
12
86°
49°
13
88°
65°
14
70°
55°
15
68°
55°
16
57°
36°
17
55°
36°
18
63°
39°
19
65°
42°
20
70°
44°
21
67°
49°
22
66°
51°
23
68°
50°
24
65°
47°
25
62°
49°
26
62°
45°
27
60°
39°
28
51°
33°
29
51°
36°
30
55°
42°
31
53°
43°
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 70°, with overnight lows between 33° and 55°. The average high for October is 62° with an average low of 44°. 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.
