S
M
T
W
T
F
S
30
95°
72°
31
94°
70°
1
95°
74°
2
96°
72°
3
94°
72°
4
89°
73°
5
92°
73°
6
94°
72°
7
95°
73°
8
94°
73°
9
94°
72°
10
93°
73°
11
93°
73°
12
92°
70°
13
92°
67°
14
86°
65°
15
84°
65°
16
86°
66°
17
90°
69°
18
90°
68°
19
83°
67°
20
85°
68°
21
91°
69°
22
90°
70°
23
88°
62°
24
89°
61°
25
81°
61°
26
84°
59°
27
88°
67°
28
88°
67°
29
Hist. Avg.
84°
62°
30
Hist. Avg.
84°
62°
1
Hist. Avg.
84°
62°
2
Hist. Avg.
83°
61°
3
Hist. Avg.
83°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Fossil Creek
Fossil Creek's September 2026 forecast shows daily high temperatures ranging from 81° to 96°, with overnight lows between 59° and 74°. The average high for September is 90° with an average low of 69°. 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 Creek. See also: October | November | December.
