S
M
T
W
T
F
S
30
78°
55°
31
79°
53°
1
77°
46°
2
71°
47°
3
68°
54°
4
74°
53°
5
75°
52°
6
77°
45°
7
70°
45°
8
70°
46°
9
74°
52°
10
71°
53°
11
73°
51°
12
69°
48°
13
67°
48°
14
64°
50°
15
63°
44°
16
63°
41°
17
64°
48°
18
65°
42°
19
63°
45°
20
62°
50°
21
66°
48°
22
68°
40°
23
61°
40°
24
60°
42°
25
58°
39°
26
61°
39°
27
65°
45°
28
59°
42°
29
61°
46°
30
Hist. Avg.
61°
41°
1
Hist. Avg.
60°
40°
2
Hist. Avg.
60°
40°
3
Hist. Avg.
59°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Caribou
Caribou's September 2026 forecast shows daily high temperatures ranging from 58° to 79°, with overnight lows between 39° and 55°. The average high for September is 68° 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 September weather will actually feel in Caribou. See also: October | November | December.
