S
M
T
W
T
F
S
30
72°
48°
31
71°
47°
1
72°
46°
2
70°
43°
3
70°
41°
4
71°
45°
5
74°
45°
6
68°
35°
7
66°
34°
8
68°
37°
9
68°
38°
10
73°
40°
11
75°
45°
12
74°
43°
13
72°
42°
14
69°
36°
15
66°
38°
16
66°
37°
17
69°
43°
18
74°
40°
19
70°
39°
20
71°
37°
21
71°
38°
22
72°
39°
23
75°
40°
24
75°
41°
25
71°
41°
26
65°
40°
27
71°
44°
28
73°
37°
29
61°
29°
30
59°
40°
1
62°
33°
2
57°
26°
3
57°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cobalt
Cobalt's September 2026 forecast shows daily high temperatures ranging from 57° to 75°, with overnight lows between 26° and 48°. The average high for September is 69° with an average low of 39°. 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 Cobalt. See also: October | November | December.
