S
M
T
W
T
F
S
31
75°
42°
1
78°
46°
2
76°
46°
3
82°
45°
4
86°
50°
5
87°
63°
6
88°
66°
7
81°
60°
8
81°
55°
9
87°
69°
10
93°
71°
11
91°
73°
12
81°
63°
13
85°
60°
14
80°
57°
15
74°
51°
16
78°
57°
17
72°
57°
18
72°
55°
19
76°
52°
20
77°
55°
21
73°
52°
22
74°
57°
23
78°
51°
24
78°
51°
25
82°
59°
26
78°
53°
27
79°
64°
28
83°
63°
29
89°
65°
30
94°
77°
1
98°
78°
2
97°
77°
3
96°
71°
4
87°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Ottawa
Ottawa's June 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for June is ° with an average low of °. 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 Ottawa. See also: July | August | September.
