S
M
T
W
T
F
S
26
73°
53°
27
68°
52°
28
71°
48°
29
76°
56°
30
72°
58°
1
69°
55°
2
59°
52°
3
64°
52°
4
72°
61°
5
75°
66°
6
79°
71°
7
77°
61°
8
66°
54°
9
74°
58°
10
76°
63°
11
77°
64°
12
74°
61°
13
72°
60°
14
78°
63°
15
80°
62°
16
76°
61°
17
77°
63°
18
78°
64°
19
77°
65°
20
83°
66°
21
82°
66°
22
77°
61°
23
77°
59°
24
76°
60°
25
78°
64°
26
78°
63°
27
79°
61°
28
78°
62°
29
79°
64°
30
80°
65°
31
79°
67°
1
80°
68°
2
82°
67°
3
80°
68°
4
80°
68°
5
81°
69°
6
81°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Richmond Hill
Richmond Hill's May 2026 forecast shows daily high temperatures ranging from 64° to 83°, with overnight lows between 52° and 71°. The average high for May is 77° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Richmond Hill. See also: June | July | August.
