S
M
T
W
T
F
S
28
76°
59°
29
82°
61°
30
81°
54°
1
81°
58°
2
79°
59°
3
75°
54°
4
76°
56°
5
78°
54°
6
76°
54°
7
76°
55°
8
75°
54°
9
74°
54°
10
76°
60°
11
79°
61°
12
77°
59°
13
76°
60°
14
75°
55°
15
78°
57°
16
82°
60°
17
84°
61°
18
83°
63°
19
84°
63°
20
79°
59°
21
83°
64°
22
85°
62°
23
80°
61°
24
83°
60°
25
83°
55°
26
76°
56°
27
76°
54°
28
75°
54°
29
76°
54°
30
76°
54°
31
78°
54°
1
81°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Longueuil
Longueuil's July 2026 forecast shows daily high temperatures ranging from 74° to 85°, with overnight lows between 54° and 64°. The average high for July is 79° with an average low of 58°. 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 Longueuil. See also: August | September | October.
