S
M
T
W
T
F
S
30
77°
36°
31
86°
36°
1
81°
47°
2
63°
45°
3
61°
41°
4
57°
39°
5
66°
36°
6
61°
45°
7
68°
37°
8
77°
37°
9
86°
39°
10
84°
43°
11
75°
45°
12
73°
34°
13
61°
41°
14
68°
32°
15
70°
36°
16
68°
46°
17
61°
46°
18
73°
39°
19
79°
39°
20
84°
43°
21
84°
45°
22
75°
43°
23
73°
34°
24
77°
37°
25
61°
41°
26
64°
36°
27
64°
37°
28
N/A
29
75°
34°
30
77°
37°
1
77°
39°
2
81°
39°
3
81°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Fossil
Fossil's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Fossil. See also: October | November | December.
