S
M
T
W
T
F
S
27
73°
45°
28
64°
55°
29
73°
61°
30
73°
63°
1
70°
50°
2
70°
46°
3
68°
46°
4
70°
43°
5
73°
52°
6
68°
54°
7
63°
48°
8
57°
46°
9
65°
46°
10
57°
43°
11
58°
46°
12
63°
59°
13
71°
50°
14
65°
52°
15
62°
45°
16
58°
45°
17
60°
49°
18
60°
46°
19
58°
47°
20
57°
46°
21
55°
44°
22
59°
46°
23
59°
45°
24
57°
41°
25
54°
44°
26
56°
42°
27
56°
46°
28
57°
42°
29
55°
41°
30
53°
39°
31
51°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Harleston
Harleston's October 2026 forecast shows daily high temperatures ranging from 51° to 71°, with overnight lows between 39° and 59°. The average high for October is 59° 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 Harleston. See also: November | December | January.
