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
66°
52°
5
63°
40°
6
50°
39°
7
54°
37°
8
53°
37°
9
54°
42°
10
57°
39°
11
55°
40°
12
56°
39°
13
59°
45°
14
61°
45°
15
57°
43°
16
59°
46°
17
62°
45°
18
67°
49°
19
65°
46°
20
67°
51°
21
69°
50°
22
68°
50°
23
62°
43°
24
60°
43°
25
60°
44°
26
62°
45°
27
62°
44°
28
63°
44°
29
63°
45°
30
65°
47°
31
64°
52°
1
65°
48°
2
66°
46°
3
69°
52°
4
70°
50°
5
68°
54°
6
75°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Stittsville
Stittsville's May 2026 forecast shows daily high temperatures ranging from 50° to 75°, with overnight lows between 37° and 56°. The average high for May is 62° with an average low of 46°. 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 Stittsville. See also: June | July | August.
