S
M
T
W
T
F
S
26
66°
32°
27
67°
35°
28
67°
40°
29
56°
43°
30
54°
45°
1
49°
35°
2
53°
37°
3
50°
35°
4
57°
41°
5
57°
41°
6
58°
43°
7
59°
42°
8
55°
39°
9
55°
38°
10
57°
39°
11
56°
40°
12
54°
43°
13
56°
36°
14
58°
42°
15
57°
41°
16
58°
38°
17
58°
37°
18
59°
42°
19
63°
46°
20
66°
45°
21
68°
43°
22
63°
39°
23
60°
41°
24
59°
43°
25
61°
44°
26
62°
41°
27
61°
41°
28
62°
48°
29
61°
49°
30
62°
48°
31
63°
44°
1
62°
42°
2
62°
42°
3
63°
44°
4
62°
43°
5
62°
43°
6
63°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Caribou
Caribou's May 2026 forecast shows daily high temperatures ranging from 49° to 68°, with overnight lows between 35° and 49°. The average high for May is 59° 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 Caribou. See also: June | July | August.
