S
M
T
W
T
F
S
30
81°
60°
31
82°
58°
1
82°
53°
2
78°
54°
3
81°
53°
4
79°
54°
5
81°
57°
6
81°
57°
7
80°
49°
8
72°
47°
9
71°
54°
10
72°
55°
11
73°
50°
12
77°
57°
13
78°
54°
14
77°
57°
15
77°
56°
16
69°
51°
17
69°
53°
18
Hist. Avg.
73°
52°
19
Hist. Avg.
73°
52°
20
Hist. Avg.
72°
52°
21
Hist. Avg.
72°
51°
22
Hist. Avg.
71°
51°
23
Hist. Avg.
71°
50°
24
Hist. Avg.
70°
50°
25
Hist. Avg.
70°
49°
26
Hist. Avg.
69°
49°
27
Hist. Avg.
69°
48°
28
Hist. Avg.
68°
48°
29
Hist. Avg.
68°
48°
30
Hist. Avg.
67°
47°
1
Hist. Avg.
67°
47°
2
Hist. Avg.
66°
46°
3
Hist. Avg.
66°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Chaska
Chaska's September 2026 forecast shows daily high temperatures ranging from 69° to 82°, with overnight lows between 47° and 60°. The average high for September is 77° with an average low of 54°. 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 Chaska. See also: October | November | December.
