S
M
T
W
T
F
S
28
83°
61°
29
85°
60°
30
84°
65°
1
90°
72°
2
90°
71°
3
88°
73°
4
81°
65°
5
83°
61°
6
87°
63°
7
85°
70°
8
87°
67°
9
74°
67°
10
82°
64°
11
81°
59°
12
83°
61°
13
82°
71°
14
93°
71°
15
83°
65°
16
80°
59°
17
78°
60°
18
79°
62°
19
80°
61°
20
80°
66°
21
79°
65°
22
77°
64°
23
82°
64°
24
81°
66°
25
81°
65°
26
82°
66°
27
75°
60°
28
75°
63°
29
76°
60°
30
74°
61°
31
77°
63°
1
77°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Châteauguay
Châteauguay's July 2026 forecast shows daily high temperatures ranging from 74° to 93°, with overnight lows between 59° and 71°. The average high for July is 80° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Châteauguay. See also: August | September | October.
