S
M
T
W
T
F
S
30
85°
48°
31
86°
49°
1
85°
48°
2
85°
49°
3
84°
47°
4
83°
48°
5
82°
50°
6
83°
49°
7
84°
48°
8
77°
40°
9
76°
42°
10
75°
40°
11
74°
40°
12
79°
38°
13
71°
38°
14
71°
36°
15
69°
37°
16
71°
37°
17
75°
40°
18
72°
36°
19
70°
37°
20
75°
43°
21
76°
44°
22
77°
36°
23
77°
36°
24
69°
39°
25
Hist. Avg.
73°
39°
26
Hist. Avg.
72°
39°
27
Hist. Avg.
72°
38°
28
Hist. Avg.
72°
38°
29
Hist. Avg.
71°
38°
30
Hist. Avg.
71°
38°
1
Hist. Avg.
70°
37°
2
Hist. Avg.
70°
37°
3
Hist. Avg.
69°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Bend
Bend's September 2026 forecast shows daily high temperatures ranging from 69° to 86°, with overnight lows between 36° and 50°. The average high for September is 77° with an average low of 42°. 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 Bend. See also: October | November | December.