S
M
T
W
T
F
S
26
67°
38°
27
73°
37°
28
69°
48°
29
58°
44°
30
48°
41°
1
50°
34°
2
49°
33°
3
53°
40°
4
58°
48°
5
60°
43°
6
56°
37°
7
52°
34°
8
49°
37°
9
52°
38°
10
57°
41°
11
58°
40°
12
60°
42°
13
58°
42°
14
57°
41°
15
60°
37°
16
60°
38°
17
61°
39°
18
62°
47°
19
65°
48°
20
71°
48°
21
71°
47°
22
67°
42°
23
61°
46°
24
66°
42°
25
62°
41°
26
64°
45°
27
63°
47°
28
64°
51°
29
70°
50°
30
68°
43°
31
67°
42°
1
64°
42°
2
64°
43°
3
66°
43°
4
64°
44°
5
65°
44°
6
66°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Arnprior
Arnprior's May 2026 forecast shows daily high temperatures ranging from 49° to 71°, with overnight lows between 33° and 51°. The average high for May is 61° with an average low of 42°. 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 Arnprior. See also: June | July | August.
