S
M
T
W
T
F
S
30
103°
78°
31
101°
77°
1
99°
75°
2
101°
78°
3
102°
76°
4
101°
74°
5
101°
76°
6
101°
74°
7
101°
74°
8
102°
78°
9
103°
78°
10
86°
71°
11
96°
68°
12
104°
75°
13
100°
77°
14
99°
76°
15
100°
77°
16
98°
67°
17
98°
75°
18
97°
76°
19
98°
74°
20
94°
71°
21
83°
65°
22
85°
65°
23
89°
64°
24
88°
70°
25
87°
71°
26
92°
66°
27
92°
63°
28
91°
63°
29
81°
70°
30
87°
67°
1
80°
63°
2
67°
59°
3
78°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sentinel
Sentinel'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 Sentinel. See also: October | November | December.
