S
M
T
W
T
F
S
30
79°
57°
31
79°
48°
1
72°
47°
2
70°
50°
3
71°
55°
4
75°
50°
5
79°
45°
6
72°
45°
7
70°
46°
8
70°
53°
9
71°
52°
10
71°
48°
11
68°
48°
12
68°
45°
13
69°
42°
14
65°
43°
15
66°
47°
16
66°
52°
17
67°
52°
18
73°
51°
19
74°
49°
20
72°
47°
21
71°
44°
22
65°
41°
23
61°
40°
24
62°
39°
25
63°
41°
26
63°
42°
27
Hist. Avg.
64°
42°
28
Hist. Avg.
64°
42°
29
Hist. Avg.
64°
42°
30
Hist. Avg.
63°
41°
1
Hist. Avg.
63°
41°
2
Hist. Avg.
62°
40°
3
Hist. Avg.
62°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Weyerhaeuser
Weyerhaeuser's September 2026 forecast shows daily high temperatures ranging from 61° to 79°, with overnight lows between 39° and 57°. The average high for September is 70° with an average low of 47°. 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 Weyerhaeuser. See also: October | November | December.
