S
M
T
W
T
F
S
31
86°
57°
1
79°
57°
2
92°
56°
3
86°
64°
4
88°
63°
5
84°
64°
6
73°
61°
7
79°
61°
8
79°
55°
9
78°
61°
10
72°
60°
11
70°
60°
12
75°
58°
13
82°
52°
14
71°
54°
15
76°
46°
16
90°
57°
17
84°
57°
18
80°
57°
19
82°
50°
20
82°
53°
21
72°
53°
22
80°
46°
23
89°
52°
24
86°
51°
25
76°
47°
26
74°
45°
27
82°
47°
28
76°
50°
29
63°
57°
30
72°
50°
1
64°
54°
2
64°
50°
3
66°
49°
4
68°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Multnomah
Multnomah's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Multnomah. See also: October | November | December.
