S
M
T
W
T
F
S
30
87°
68°
31
89°
67°
1
87°
63°
2
88°
64°
3
89°
71°
4
85°
68°
5
85°
66°
6
78°
68°
7
84°
67°
8
83°
66°
9
80°
58°
10
81°
53°
11
87°
65°
12
74°
55°
13
71°
49°
14
61°
48°
15
71°
53°
16
75°
50°
17
72°
57°
18
62°
58°
19
61°
57°
20
64°
54°
21
60°
50°
22
65°
47°
23
69°
48°
24
67°
53°
25
72°
58°
26
61°
56°
27
68°
55°
28
70°
60°
29
68°
52°
30
71°
54°
1
72°
49°
2
69°
50°
3
66°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chaska
Chaska's September 2026 forecast shows daily high temperatures ranging from 61° to 72°, with overnight lows between 44° and 60°. The average high for September is 69° with an average low of 53°. 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.
