S
M
T
W
T
F
S
30
74°
56°
31
76°
48°
1
72°
47°
2
67°
52°
3
69°
55°
4
72°
53°
5
75°
46°
6
73°
46°
7
67°
48°
8
70°
52°
9
71°
52°
10
71°
48°
11
67°
52°
12
67°
50°
13
69°
46°
14
65°
45°
15
64°
44°
16
66°
53°
17
67°
52°
18
70°
54°
19
68°
49°
20
73°
50°
21
68°
43°
22
64°
45°
23
61°
44°
24
60°
41°
25
61°
47°
26
Hist. Avg.
64°
45°
27
Hist. Avg.
63°
45°
28
Hist. Avg.
63°
45°
29
Hist. Avg.
62°
44°
30
Hist. Avg.
62°
44°
1
Hist. Avg.
61°
44°
2
Hist. Avg.
61°
43°
3
Hist. Avg.
60°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Oak Ridge
Oak Ridge's September 2026 forecast shows daily high temperatures ranging from 60° to 76°, with overnight lows between 41° and 56°. The average high for September is 68° with an average low of 49°. 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 Oak Ridge. See also: October | November | December.