S
M
T
W
T
F
S
30
90°
71°
31
90°
71°
1
89°
70°
2
90°
70°
3
90°
69°
4
89°
69°
5
90°
68°
6
90°
69°
7
89°
69°
8
90°
68°
9
90°
69°
10
89°
69°
11
90°
68°
12
90°
69°
13
88°
69°
14
87°
64°
15
79°
65°
16
87°
66°
17
88°
64°
18
89°
58°
19
78°
54°
20
77°
54°
21
80°
55°
22
84°
56°
23
85°
61°
24
85°
60°
25
82°
61°
26
84°
61°
27
84°
60°
28
83°
58°
29
74°
52°
30
75°
53°
1
80°
56°
2
83°
56°
3
82°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Brookings
Brookings's September 2026 forecast shows daily high temperatures ranging from 74° to 90°, with overnight lows between 52° and 71°. The average high for September is 85° with an average low of 63°. 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 Brookings. See also: October | November | December.
