S
M
T
W
T
F
S
27
63°
57°
28
66°
57°
29
72°
55°
30
76°
61°
1
82°
64°
2
88°
59°
3
72°
54°
4
63°
53°
5
70°
44°
6
62°
41°
7
70°
51°
8
74°
50°
9
72°
52°
10
67°
51°
11
68°
53°
12
67°
54°
13
66°
52°
14
63°
48°
15
62°
51°
16
65°
50°
17
62°
46°
18
67°
52°
19
58°
43°
20
59°
40°
21
56°
43°
22
56°
49°
23
58°
47°
24
60°
46°
25
58°
44°
26
55°
43°
27
54°
40°
28
54°
38°
29
55°
40°
30
61°
45°
31
65°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Horsham
Horsham's October 2026 forecast shows daily high temperatures ranging from 54° to 74°, with overnight lows between 38° and 54°. The average high for October is 62° 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 Horsham. See also: November | December | January.