S
M
T
W
T
F
S
31
79°
58°
1
78°
51°
2
80°
49°
3
84°
52°
4
85°
64°
5
80°
68°
6
N/A
7
82°
70°
8
81°
70°
9
90°
72°
10
93°
72°
11
89°
65°
12
84°
65°
13
82°
61°
14
79°
58°
15
73°
57°
16
73°
60°
17
75°
60°
18
78°
62°
19
79°
61°
20
81°
62°
21
80°
66°
22
77°
66°
23
78°
65°
24
83°
67°
25
84°
67°
26
84°
68°
27
83°
63°
28
77°
60°
29
77°
64°
30
83°
68°
1
79°
68°
2
81°
67°
3
84°
64°
4
79°
62°
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 73° to 93°, with overnight lows between 57° and 72°. The average high for June is 81° with an average low of 65°. 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.
