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
86°
66°
8
87°
70°
9
79°
69°
10
84°
61°
11
79°
62°
12
83°
64°
13
82°
69°
14
81°
62°
15
78°
63°
16
80°
64°
17
79°
66°
18
82°
64°
19
80°
65°
20
81°
58°
21
73°
56°
22
73°
57°
23
74°
56°
24
75°
57°
25
79°
63°
26
78°
64°
27
79°
64°
28
77°
63°
29
80°
64°
30
77°
63°
31
77°
62°
1
79°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Lachine
Lachine's July 2026 forecast shows daily high temperatures ranging from 73° to 87°, with overnight lows between 56° and 70°. The average high for July is 79° 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 July weather will actually feel in Lachine. See also: August | September | October.
