S
M
T
W
T
F
S
26
86°
71°
27
83°
70°
28
84°
75°
29
85°
71°
30
82°
71°
31
82°
72°
1
83°
71°
2
82°
75°
3
83°
75°
4
84°
74°
5
87°
71°
6
82°
69°
7
82°
73°
8
87°
72°
9
82°
73°
10
85°
74°
11
83°
70°
12
83°
74°
13
86°
74°
14
86°
71°
15
81°
68°
16
80°
68°
17
80°
71°
18
81°
73°
19
81°
74°
20
84°
74°
21
85°
73°
22
86°
73°
23
83°
72°
24
87°
73°
25
86°
72°
26
87°
70°
27
82°
69°
28
81°
68°
29
78°
65°
30
77°
64°
31
76°
64°
1
76°
69°
2
77°
71°
3
78°
72°
4
84°
71°
5
84°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Richmond Hill
Richmond Hill's August 2026 forecast shows daily high temperatures ranging from 76° to 87°, with overnight lows between 64° and 75°. The average high for August is 83° with an average low of 71°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Richmond Hill. See also: September | October | November.
