S
M
T
W
T
F
S
30
79°
51°
31
80°
52°
1
80°
51°
2
79°
51°
3
78°
50°
4
78°
50°
5
79°
51°
6
79°
52°
7
81°
50°
8
80°
50°
9
79°
49°
10
80°
50°
11
78°
49°
12
79°
50°
13
80°
51°
14
81°
55°
15
82°
52°
16
84°
55°
17
82°
54°
18
85°
55°
19
85°
55°
20
86°
56°
21
85°
54°
22
82°
52°
23
77°
52°
24
81°
47°
25
79°
49°
26
79°
50°
27
80°
50°
28
81°
49°
29
80°
49°
30
81°
50°
1
80°
51°
2
79°
50°
3
79°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Tehachapi
Tehachapi's September 2026 forecast shows daily high temperatures ranging from 77° to 86°, with overnight lows between 47° and 56°. The average high for September is 80° with an average low of 51°. 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 Tehachapi. See also: October | November | December.