S
M
T
W
T
F
S
30
74°
51°
31
74°
55°
1
73°
56°
2
73°
51°
3
74°
53°
4
74°
53°
5
72°
52°
6
72°
49°
7
73°
51°
8
80°
52°
9
82°
55°
10
81°
58°
11
81°
57°
12
82°
58°
13
82°
56°
14
78°
47°
15
75°
51°
16
73°
55°
17
79°
56°
18
70°
52°
19
74°
54°
20
79°
56°
21
78°
58°
22
73°
54°
23
67°
55°
24
66°
53°
25
65°
45°
26
65°
43°
27
66°
43°
28
65°
42°
29
66°
43°
30
65°
44°
1
66°
51°
2
65°
47°
3
61°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Newberg
Newberg's September 2026 forecast shows daily high temperatures ranging from 61° to 82°, with overnight lows between 42° and 58°. The average high for September is 73° 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 Newberg. See also: October | November | December.
