S
M
T
W
T
F
S
27
67°
43°
28
71°
44°
29
75°
46°
30
66°
61°
1
72°
61°
2
68°
40°
3
68°
46°
4
68°
44°
5
64°
35°
6
66°
47°
7
68°
50°
8
70°
49°
9
66°
45°
10
70°
50°
11
69°
47°
12
62°
42°
13
61°
42°
14
62°
43°
15
63°
42°
16
65°
46°
17
66°
45°
18
66°
46°
19
59°
42°
20
54°
39°
21
53°
39°
22
53°
40°
23
61°
45°
24
64°
44°
25
62°
40°
26
55°
33°
27
51°
33°
28
56°
40°
29
58°
34°
30
55°
40°
31
60°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Hartford
Hartford's October 2026 forecast shows daily high temperatures ranging from 51° to 70°, with overnight lows between 33° and 50°. The average high for October is 62° with an average low of 42°. 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 Hartford. See also: November | December | January.