S
M
T
W
T
F
S
27
79°
55°
28
78°
54°
29
79°
53°
30
78°
52°
1
77°
52°
2
77°
51°
3
76°
52°
4
78°
51°
5
76°
50°
6
76°
51°
7
75°
51°
8
76°
50°
9
76°
51°
10
75°
50°
11
75°
51°
12
70°
41°
13
68°
45°
14
65°
47°
15
62°
45°
16
67°
46°
17
68°
45°
18
68°
43°
19
66°
40°
20
61°
44°
21
59°
45°
22
59°
44°
23
60°
44°
24
60°
46°
25
67°
46°
26
68°
43°
27
70°
32°
28
68°
31°
29
54°
35°
30
58°
37°
31
59°
36°
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 54° to 79°, with overnight lows between 31° and 55°. The average high for October is 69° 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.
