S
M
T
W
T
F
S
27
77°
61°
28
81°
55°
29
86°
52°
30
93°
66°
1
91°
68°
2
75°
55°
3
73°
50°
4
84°
46°
5
77°
48°
6
81°
45°
7
90°
50°
8
86°
50°
9
90°
50°
10
82°
52°
11
90°
48°
12
93°
64°
13
95°
61°
14
77°
68°
15
82°
57°
16
57°
48°
17
61°
39°
18
68°
36°
19
73°
37°
20
75°
43°
21
77°
45°
22
74°
43°
23
78°
43°
24
77°
46°
25
77°
48°
26
76°
47°
27
75°
48°
28
76°
50°
29
69°
45°
30
68°
49°
31
60°
39°
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 60° to 78°, with overnight lows between 39° and 50°. The average high for October is 73° 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.
