S
M
T
W
T
F
S
27
64°
59°
28
61°
57°
29
70°
55°
30
69°
57°
1
76°
62°
2
80°
58°
3
72°
50°
4
65°
53°
5
71°
45°
6
60°
42°
7
62°
50°
8
70°
51°
9
68°
50°
10
66°
49°
11
64°
50°
12
67°
52°
13
65°
48°
14
66°
46°
15
58°
41°
16
60°
45°
17
67°
50°
18
67°
50°
19
62°
49°
20
65°
48°
21
62°
45°
22
56°
43°
23
58°
45°
24
64°
47°
25
64°
47°
26
63°
43°
27
54°
41°
28
55°
38°
29
58°
43°
30
57°
42°
31
58°
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 54° to 80°, with overnight lows between 38° and 62°. The average high for October is 64° with an average low of 47°. 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.
