S
M
T
W
T
F
S
30
77°
57°
31
78°
56°
1
83°
57°
2
82°
56°
3
79°
55°
4
78°
52°
5
75°
52°
6
77°
51°
7
78°
48°
8
75°
46°
9
77°
46°
10
79°
45°
11
75°
44°
12
76°
50°
13
76°
55°
14
82°
55°
15
84°
49°
16
79°
51°
17
81°
57°
18
81°
54°
19
76°
53°
20
80°
54°
21
80°
50°
22
73°
48°
23
70°
45°
24
71°
48°
25
73°
45°
26
75°
46°
27
75°
43°
28
70°
46°
29
72°
48°
30
74°
50°
1
72°
48°
2
76°
47°
3
76°
49°
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 70° to 84°, with overnight lows between 43° and 57°. The average high for September is 77° with an average low of 50°. 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.
