S
M
T
W
T
F
S
30
72°
53°
31
73°
52°
1
72°
51°
2
73°
56°
3
74°
52°
4
77°
51°
5
73°
52°
6
73°
52°
7
74°
53°
8
75°
57°
9
78°
53°
10
78°
54°
11
77°
59°
12
79°
54°
13
80°
54°
14
79°
58°
15
79°
55°
16
75°
54°
17
80°
54°
18
79°
60°
19
80°
54°
20
76°
55°
21
75°
54°
22
76°
59°
23
79°
61°
24
80°
60°
25
76°
56°
26
77°
56°
27
78°
60°
28
79°
60°
29
81°
57°
30
Hist. Avg.
79°
53°
1
Hist. Avg.
79°
54°
2
Hist. Avg.
79°
54°
3
Hist. Avg.
79°
54°
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 51° and 61°. The average high for September is 77° with an average low of 55°. 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.
