S
M
T
W
T
F
S
30
83°
50°
31
85°
50°
1
78°
44°
2
76°
44°
3
77°
47°
4
82°
48°
5
82°
47°
6
74°
37°
7
74°
38°
8
75°
43°
9
81°
46°
10
85°
48°
11
85°
48°
12
84°
47°
13
84°
47°
14
80°
42°
15
75°
39°
16
76°
42°
17
80°
43°
18
85°
47°
19
84°
44°
20
84°
39°
21
80°
44°
22
81°
45°
23
85°
44°
24
82°
43°
25
81°
45°
26
81°
46°
27
83°
43°
28
82°
38°
29
71°
38°
30
69°
41°
1
71°
35°
2
66°
32°
3
64°
36°
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 64° to 85°, with overnight lows between 32° and 50°. The average high for September is 79° with an average low of 43°. 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.
