S
M
T
W
T
F
S
30
66°
40°
31
69°
44°
1
73°
46°
2
72°
48°
3
74°
48°
4
73°
45°
5
73°
40°
6
70°
45°
7
69°
46°
8
72°
47°
9
72°
48°
10
73°
47°
11
73°
45°
12
70°
47°
13
71°
46°
14
71°
46°
15
70°
41°
16
70°
34°
17
65°
35°
18
60°
41°
19
58°
33°
20
63°
36°
21
67°
44°
22
69°
44°
23
Hist. Avg.
60°
36°
24
Hist. Avg.
60°
35°
25
Hist. Avg.
60°
35°
26
Hist. Avg.
60°
35°
27
Hist. Avg.
59°
35°
28
Hist. Avg.
59°
34°
29
Hist. Avg.
59°
34°
30
Hist. Avg.
59°
34°
1
Hist. Avg.
58°
33°
2
Hist. Avg.
58°
33°
3
Hist. Avg.
58°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cochrane
Cochrane's September 2026 forecast shows daily high temperatures ranging from 58° to 74°, with overnight lows between 33° and 48°. The average high for September is 69° with an average low of 43°. 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 Cochrane. See also: October | November | December.