S
M
T
W
T
F
S
31
79°
54°
1
75°
57°
2
78°
52°
3
79°
52°
4
79°
54°
5
82°
57°
6
88°
62°
7
84°
64°
8
86°
66°
9
81°
68°
10
84°
68°
11
88°
68°
12
86°
72°
13
82°
64°
14
82°
61°
15
70°
55°
16
73°
52°
17
81°
59°
18
77°
64°
19
75°
61°
20
77°
55°
21
82°
61°
22
79°
66°
23
N/A
24
82°
59°
25
87°
67°
26
83°
68°
27
80°
69°
28
85°
67°
29
92°
71°
30
94°
70°
1
93°
69°
2
93°
70°
3
92°
67°
4
86°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
June Weather in Ottawa
Ottawa's June 2026 forecast shows daily high temperatures ranging from 80° to 94°, with overnight lows between 59° and 71°. The average high for June is 88° with an average low of 68°. 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.
