S
M
T
W
T
F
S
30
78°
60°
31
81°
52°
1
77°
51°
2
72°
54°
3
73°
59°
4
78°
55°
5
81°
50°
6
74°
49°
7
72°
52°
8
72°
57°
9
73°
55°
10
71°
56°
11
71°
49°
12
70°
49°
13
70°
46°
14
68°
47°
15
69°
54°
16
68°
56°
17
75°
56°
18
78°
55°
19
78°
51°
20
73°
52°
21
76°
50°
22
70°
44°
23
67°
44°
24
66°
42°
25
66°
43°
26
65°
43°
27
65°
41°
28
Hist. Avg.
69°
46°
29
Hist. Avg.
69°
46°
30
Hist. Avg.
68°
45°
1
Hist. Avg.
68°
45°
2
Hist. Avg.
67°
45°
3
Hist. Avg.
67°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Osage
Osage's September 2026 forecast shows daily high temperatures ranging from 65° to 81°, with overnight lows between 41° and 60°. The average high for September is 72° 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 Osage. See also: October | November | December.
