S
M
T
W
T
F
S
30
77°
60°
31
78°
63°
1
82°
64°
2
82°
61°
3
81°
58°
4
82°
63°
5
81°
60°
6
80°
56°
7
74°
60°
8
73°
61°
9
78°
54°
10
77°
52°
11
73°
60°
12
76°
55°
13
80°
58°
14
76°
57°
15
71°
59°
16
72°
52°
17
71°
56°
18
Hist. Avg.
74°
54°
19
Hist. Avg.
74°
54°
20
Hist. Avg.
73°
53°
21
Hist. Avg.
73°
53°
22
Hist. Avg.
72°
52°
23
Hist. Avg.
72°
52°
24
Hist. Avg.
72°
52°
25
Hist. Avg.
71°
51°
26
Hist. Avg.
71°
51°
27
Hist. Avg.
70°
50°
28
Hist. Avg.
70°
50°
29
Hist. Avg.
70°
49°
30
Hist. Avg.
69°
49°
1
Hist. Avg.
69°
49°
2
Hist. Avg.
68°
48°
3
Hist. Avg.
68°
48°
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 71° to 82°, with overnight lows between 52° and 64°. The average high for September is 77° with an average low of 58°. 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.
