S
M
T
W
T
F
S
30
72°
31°
31
85°
33°
1
81°
41°
2
73°
50°
3
60°
42°
4
64°
35°
5
68°
37°
6
66°
36°
7
68°
39°
8
74°
36°
9
82°
35°
10
87°
37°
11
74°
41°
12
82°
34°
13
60°
44°
14
65°
37°
15
72°
29°
16
76°
44°
17
73°
44°
18
70°
40°
19
76°
39°
20
79°
39°
21
80°
38°
22
80°
39°
23
76°
38°
24
79°
42°
25
76°
41°
26
69°
40°
27
67°
41°
28
70°
40°
29
79°
35°
30
66°
36°
1
65°
34°
2
74°
40°
3
66°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Baker City
Baker City's September 2026 forecast shows daily high temperatures ranging from 65° to 80°, with overnight lows between 34° and 44°. The average high for September is 73° with an average low of 39°. 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 Baker City. See also: October | November | December.
