S
M
T
W
T
F
S
27
87°
54°
28
88°
60°
29
86°
69°
30
87°
69°
1
88°
70°
2
89°
73°
3
82°
74°
4
83°
74°
5
75°
69°
6
78°
68°
7
81°
69°
8
80°
71°
9
76°
71°
10
83°
73°
11
86°
66°
12
86°
63°
13
88°
65°
14
88°
65°
15
83°
64°
16
84°
65°
17
81°
62°
18
78°
57°
19
76°
56°
20
78°
57°
21
79°
56°
22
80°
61°
23
72°
55°
24
71°
55°
25
71°
59°
26
72°
58°
27
77°
54°
28
76°
50°
29
70°
50°
30
70°
58°
31
73°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Richmond Hill
Richmond Hill's October 2026 forecast shows daily high temperatures ranging from 70° to 88°, with overnight lows between 50° and 73°. The average high for October is 78° with an average low of 60°. 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 Richmond Hill. See also: November | December | January.