S
M
T
W
T
F
S
31
63°
43°
1
63°
43°
2
62°
44°
3
64°
43°
4
65°
48°
5
70°
54°
6
75°
55°
7
74°
55°
8
74°
54°
9
75°
49°
10
66°
46°
11
65°
45°
12
66°
48°
13
68°
46°
14
65°
45°
15
66°
46°
16
67°
47°
17
69°
51°
18
72°
56°
19
73°
56°
20
77°
55°
21
72°
52°
22
74°
58°
23
78°
58°
24
77°
57°
25
77°
59°
26
72°
51°
27
72°
57°
28
76°
51°
29
80°
50°
30
72°
52°
1
73°
57°
2
73°
60°
3
81°
60°
4
80°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Guelph
Guelph's June 2026 forecast shows daily high temperatures ranging from 62° to 81°, with overnight lows between 43° and 61°. The average high for June is 71° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Guelph. See also: July | August | September.