S
M
T
W
T
F
S
30
78°
49°
31
81°
53°
1
78°
50°
2
75°
48°
3
77°
50°
4
75°
49°
5
81°
58°
6
Hist. Avg.
80°
52°
7
Hist. Avg.
80°
52°
8
Hist. Avg.
80°
52°
9
Hist. Avg.
80°
52°
10
Hist. Avg.
79°
52°
11
Hist. Avg.
79°
52°
12
Hist. Avg.
79°
52°
13
Hist. Avg.
79°
51°
14
Hist. Avg.
78°
51°
15
Hist. Avg.
78°
51°
16
Hist. Avg.
78°
51°
17
Hist. Avg.
78°
50°
18
Hist. Avg.
77°
50°
19
Hist. Avg.
77°
50°
20
Hist. Avg.
76°
50°
21
Hist. Avg.
76°
50°
22
Hist. Avg.
76°
49°
23
Hist. Avg.
75°
49°
24
Hist. Avg.
75°
49°
25
Hist. Avg.
74°
49°
26
Hist. Avg.
74°
48°
27
Hist. Avg.
74°
48°
28
Hist. Avg.
73°
48°
29
Hist. Avg.
73°
48°
30
Hist. Avg.
72°
47°
1
Hist. Avg.
72°
47°
2
Hist. Avg.
71°
47°
3
Hist. Avg.
71°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Keizer
Keizer's September 2026 forecast shows daily high temperatures ranging from 75° to 81°, with overnight lows between 48° and 58°. The average high for September is 78° with an average low of 51°. 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.
