S
M
T
W
T
F
S
30
71°
49°
31
71°
47°
1
72°
46°
2
70°
47°
3
71°
53°
4
72°
47°
5
70°
45°
6
69°
46°
7
70°
52°
8
71°
51°
9
72°
52°
10
75°
50°
11
72°
50°
12
67°
48°
13
67°
51°
14
73°
51°
15
Hist. Avg.
69°
47°
16
Hist. Avg.
69°
46°
17
Hist. Avg.
68°
46°
18
Hist. Avg.
68°
46°
19
Hist. Avg.
67°
45°
20
Hist. Avg.
67°
45°
21
Hist. Avg.
66°
44°
22
Hist. Avg.
66°
44°
23
Hist. Avg.
66°
44°
24
Hist. Avg.
65°
43°
25
Hist. Avg.
65°
43°
26
Hist. Avg.
64°
43°
27
Hist. Avg.
64°
42°
28
Hist. Avg.
63°
42°
29
Hist. Avg.
63°
42°
30
Hist. Avg.
62°
41°
1
Hist. Avg.
62°
41°
2
Hist. Avg.
61°
40°
3
Hist. Avg.
61°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Brookfield
Brookfield's September 2026 forecast shows daily high temperatures ranging from 67° to 75°, with overnight lows between 45° and 53°. The average high for September is 71° 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 Brookfield. See also: October | November | December.
