S
M
T
W
T
F
S
30
64°
50°
31
65°
51°
1
67°
52°
2
70°
57°
3
69°
56°
4
64°
54°
5
65°
51°
6
64°
54°
7
63°
53°
8
64°
54°
9
66°
54°
10
66°
53°
11
65°
57°
12
68°
57°
13
70°
51°
14
66°
49°
15
63°
50°
16
64°
53°
17
66°
55°
18
70°
57°
19
71°
55°
20
71°
51°
21
70°
49°
22
65°
48°
23
62°
49°
24
63°
48°
25
63°
47°
26
62°
48°
27
62°
52°
28
63°
54°
29
69°
48°
30
68°
47°
1
Hist. Avg.
65°
51°
2
Hist. Avg.
65°
51°
3
Hist. Avg.
65°
50°
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 62° to 71°, with overnight lows between 47° and 57°. The average high for September is 66° with an average low of 52°. 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.
