S
M
T
W
T
F
S
30
76°
48°
31
75°
51°
1
74°
52°
2
75°
48°
3
75°
50°
4
76°
50°
5
73°
49°
6
73°
46°
7
74°
48°
8
81°
50°
9
83°
52°
10
83°
55°
11
82°
54°
12
83°
55°
13
83°
54°
14
80°
45°
15
76°
48°
16
75°
53°
17
81°
54°
18
82°
49°
19
81°
50°
20
80°
53°
21
77°
53°
22
79°
52°
23
80°
50°
24
78°
52°
25
77°
54°
26
78°
54°
27
78°
52°
28
69°
49°
29
68°
51°
30
70°
50°
1
67°
47°
2
65°
44°
3
64°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Yamhill
Yamhill's September 2026 forecast shows daily high temperatures ranging from 64° to 83°, with overnight lows between 44° and 55°. The average high for September is 76° 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 Yamhill. See also: October | November | December.
