S
M
T
W
T
F
S
30
92°
68°
31
91°
66°
1
90°
70°
2
91°
70°
3
92°
69°
4
91°
69°
5
90°
67°
6
89°
68°
7
89°
68°
8
88°
67°
9
88°
65°
10
87°
66°
11
88°
67°
12
90°
67°
13
89°
68°
14
83°
61°
15
82°
62°
16
Hist. Avg.
84°
60°
17
Hist. Avg.
84°
60°
18
Hist. Avg.
84°
60°
19
Hist. Avg.
84°
59°
20
Hist. Avg.
83°
59°
21
Hist. Avg.
83°
58°
22
Hist. Avg.
82°
58°
23
Hist. Avg.
82°
57°
24
Hist. Avg.
82°
57°
25
Hist. Avg.
81°
56°
26
Hist. Avg.
81°
56°
27
Hist. Avg.
81°
56°
28
Hist. Avg.
80°
55°
29
Hist. Avg.
80°
55°
30
Hist. Avg.
80°
54°
1
Hist. Avg.
79°
54°
2
Hist. Avg.
79°
53°
3
Hist. Avg.
79°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Kosciusko
Kosciusko's September 2026 forecast shows daily high temperatures ranging from 82° to 92°, with overnight lows between 61° and 70°. The average high for September is 89° with an average low of 67°. 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 Kosciusko. See also: October | November | December.