S
M
T
W
T
F
S
30
96°
75°
31
97°
75°
1
98°
74°
2
99°
78°
3
100°
78°
4
93°
77°
5
98°
76°
6
97°
76°
7
96°
76°
8
99°
76°
9
98°
75°
10
100°
75°
11
101°
74°
12
103°
75°
13
99°
72°
14
95°
74°
15
96°
72°
16
95°
71°
17
97°
71°
18
95°
72°
19
90°
65°
20
93°
69°
21
93°
69°
22
93°
68°
23
90°
68°
24
84°
68°
25
83°
68°
26
86°
67°
27
86°
67°
28
87°
68°
29
86°
67°
30
87°
63°
1
81°
57°
2
80°
57°
3
80°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Briarcliff
Briarcliff's September 2026 forecast shows daily high temperatures ranging from 80° to 103°, with overnight lows between 56° and 76°. The average high for September is 92° 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 Briarcliff. See also: October | November | December.
