S
M
T
W
T
F
S
30
78°
59°
31
87°
50°
1
77°
51°
2
85°
61°
3
91°
65°
4
89°
56°
5
95°
69°
6
88°
66°
7
86°
61°
8
83°
54°
9
78°
52°
10
90°
57°
11
82°
48°
12
74°
49°
13
64°
49°
14
65°
47°
15
73°
51°
16
74°
53°
17
71°
48°
18
68°
45°
19
69°
48°
20
74°
46°
21
79°
55°
22
80°
55°
23
79°
53°
24
73°
52°
25
75°
52°
26
75°
51°
27
77°
52°
28
76°
50°
29
69°
48°
30
60°
46°
1
61°
44°
2
59°
41°
3
59°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Timber Lake
Timber Lake's September 2026 forecast shows daily high temperatures ranging from 59° to 90°, with overnight lows between 41° and 61°. The average high for September is 73° with an average low of 50°. 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 Timber Lake. See also: October | November | December.
