S
M
T
W
T
F
S
26
67°
28°
27
70°
30°
28
60°
44°
29
50°
36°
30
50°
27°
1
49°
26°
2
46°
25°
3
55°
22°
4
74°
42°
5
60°
34°
6
50°
34°
7
50°
30°
8
56°
32°
9
61°
37°
10
52°
36°
11
53°
28°
12
55°
24°
13
54°
40°
14
51°
36°
15
66°
30°
16
69°
42°
17
77°
39°
18
87°
56°
19
82°
51°
20
57°
38°
21
61°
36°
22
68°
31°
23
58°
47°
24
56°
51°
25
74°
50°
26
79°
51°
27
76°
45°
28
71°
42°
29
65°
43°
30
66°
43°
31
67°
46°
1
68°
45°
2
67°
45°
3
71°
48°
4
73°
51°
5
72°
50°
6
68°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Algonquin Highlands
Algonquin Highlands's May 2026 forecast shows daily high temperatures ranging from 56° to 79°, with overnight lows between 42° and 51°. The average high for May is 70° with an average low of 47°. 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 Algonquin Highlands. See also: June | July | August.
