S
M
T
W
T
F
S
28
82°
53°
29
83°
56°
30
90°
65°
1
93°
70°
2
90°
71°
3
91°
67°
4
80°
66°
5
77°
62°
6
79°
62°
7
80°
59°
8
84°
62°
9
85°
62°
10
78°
59°
11
79°
56°
12
81°
62°
13
81°
60°
14
79°
57°
15
77°
58°
16
80°
60°
17
79°
61°
18
80°
58°
19
81°
63°
20
73°
53°
21
73°
53°
22
74°
54°
23
74°
57°
24
75°
59°
25
77°
60°
26
75°
60°
27
75°
58°
28
77°
61°
29
80°
61°
30
78°
60°
31
78°
61°
1
81°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Guelph
Guelph's July 2026 forecast shows daily high temperatures ranging from 73° to 85°, with overnight lows between 53° and 63°. The average high for July is 78° with an average low of 59°. 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 Guelph. See also: August | September | October.
