S
M
T
W
T
F
S
26
67°
38°
27
73°
37°
28
69°
48°
29
58°
44°
30
50°
38°
1
53°
30°
2
50°
36°
3
59°
36°
4
70°
44°
5
72°
47°
6
54°
43°
7
54°
36°
8
55°
40°
9
67°
32°
10
54°
38°
11
54°
32°
12
56°
32°
13
48°
44°
14
54°
42°
15
63°
42°
16
74°
46°
17
76°
51°
18
83°
48°
19
85°
60°
20
65°
37°
21
60°
41°
22
68°
49°
23
62°
48°
24
63°
51°
25
66°
53°
26
72°
54°
27
71°
55°
28
76°
55°
29
75°
56°
30
78°
59°
31
76°
59°
1
74°
57°
2
70°
54°
3
68°
55°
4
68°
55°
5
70°
54°
6
75°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Old Ottawa East
Old Ottawa East's May 2026 forecast shows daily high temperatures ranging from 60° to 85°, with overnight lows between 37° and 60°. The average high for May is 71° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Old Ottawa East. See also: June | July | August.
