S
M
T
W
T
F
S
30
90°
58°
31
88°
56°
1
89°
57°
2
87°
56°
3
86°
55°
4
85°
56°
5
85°
53°
6
84°
56°
7
85°
56°
8
86°
57°
9
86°
55°
10
85°
55°
11
85°
56°
12
86°
61°
13
87°
62°
14
91°
61°
15
91°
60°
16
90°
59°
17
89°
61°
18
89°
62°
19
90°
62°
20
91°
61°
21
88°
58°
22
87°
57°
23
87°
57°
24
85°
56°
25
87°
58°
26
85°
53°
27
80°
58°
28
82°
58°
29
Hist. Avg.
77°
52°
30
Hist. Avg.
77°
51°
1
Hist. Avg.
77°
51°
2
Hist. Avg.
76°
51°
3
Hist. Avg.
76°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Alta Sierra Estates
Alta Sierra Estates's September 2026 forecast shows daily high temperatures ranging from 80° to 91°, with overnight lows between 53° and 62°. The average high for September is 87° with an average low of 58°. 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 Alta Sierra Estates. See also: October | November | December.
