S
M
T
W
T
F
S
30
76°
47°
31
85°
53°
1
69°
57°
2
63°
56°
3
60°
54°
4
65°
54°
5
72°
53°
6
64°
56°
7
73°
53°
8
81°
49°
9
87°
52°
10
84°
52°
11
73°
51°
12
68°
53°
13
70°
47°
14
75°
48°
15
79°
53°
16
86°
54°
17
86°
53°
18
82°
52°
19
75°
51°
20
73°
52°
21
76°
51°
22
79°
52°
23
79°
53°
24
74°
47°
25
68°
52°
26
68°
47°
27
67°
45°
28
67°
44°
29
66°
43°
30
66°
43°
1
69°
47°
2
70°
49°
3
67°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Keizer
Keizer's September 2026 forecast shows daily high temperatures ranging from 66° to 86°, with overnight lows between 43° and 54°. The average high for September is 73° with an average low of 49°. 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 Keizer. See also: October | November | December.
