S
M
T
W
T
F
S
30
79°
65°
31
81°
64°
1
81°
57°
2
77°
57°
3
80°
62°
4
75°
62°
5
75°
61°
6
74°
60°
7
75°
57°
8
77°
53°
9
73°
53°
10
72°
62°
11
77°
59°
12
78°
61°
13
77°
60°
14
78°
59°
15
77°
61°
16
79°
60°
17
Hist. Avg.
76°
58°
18
Hist. Avg.
76°
58°
19
Hist. Avg.
75°
58°
20
Hist. Avg.
75°
57°
21
Hist. Avg.
75°
57°
22
Hist. Avg.
74°
56°
23
Hist. Avg.
74°
56°
24
Hist. Avg.
73°
56°
25
Hist. Avg.
73°
55°
26
Hist. Avg.
73°
55°
27
Hist. Avg.
72°
54°
28
Hist. Avg.
72°
54°
29
Hist. Avg.
71°
53°
30
Hist. Avg.
71°
53°
1
Hist. Avg.
70°
53°
2
Hist. Avg.
70°
52°
3
Hist. Avg.
70°
52°
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 72° to 81°, with overnight lows between 53° and 65°. The average high for September is 77° with an average low of 60°. 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.
