S
M
T
W
T
F
S
30
92°
65°
31
94°
63°
1
93°
63°
2
91°
57°
3
Hist. Avg.
84°
56°
4
Hist. Avg.
84°
56°
5
Hist. Avg.
83°
56°
6
Hist. Avg.
83°
56°
7
Hist. Avg.
83°
56°
8
Hist. Avg.
83°
56°
9
Hist. Avg.
83°
56°
10
Hist. Avg.
82°
55°
11
Hist. Avg.
82°
55°
12
Hist. Avg.
82°
55°
13
Hist. Avg.
82°
55°
14
Hist. Avg.
82°
55°
15
Hist. Avg.
81°
55°
16
Hist. Avg.
81°
54°
17
Hist. Avg.
81°
54°
18
Hist. Avg.
80°
54°
19
Hist. Avg.
80°
54°
20
Hist. Avg.
80°
54°
21
Hist. Avg.
80°
54°
22
Hist. Avg.
80°
53°
23
Hist. Avg.
79°
53°
24
Hist. Avg.
79°
53°
25
Hist. Avg.
79°
53°
26
Hist. Avg.
78°
52°
27
Hist. Avg.
78°
52°
28
Hist. Avg.
78°
52°
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 Foresthill
Foresthill's September 2026 forecast shows daily high temperatures ranging from 91° to 94°, with overnight lows between 57° and 65°. The average high for September is 93° with an average low of 62°. 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 Foresthill. See also: October | November | December.
