S
M
T
W
T
F
S
30
59°
49°
31
59°
46°
1
58°
45°
2
58°
44°
3
59°
44°
4
58°
46°
5
57°
47°
6
56°
46°
7
56°
42°
8
55°
42°
9
55°
40°
10
56°
42°
11
56°
41°
12
53°
40°
13
54°
40°
14
57°
41°
15
57°
41°
16
55°
42°
17
56°
44°
18
57°
43°
19
56°
40°
20
53°
39°
21
53°
38°
22
51°
39°
23
55°
38°
24
55°
37°
25
54°
35°
26
50°
38°
27
49°
39°
28
52°
38°
29
52°
36°
30
54°
37°
1
53°
33°
2
48°
31°
3
45°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Birchwood
Birchwood's September 2026 forecast shows daily high temperatures ranging from 45° to 59°, with overnight lows between 30° and 49°. The average high for September is 55° with an average low of 40°. 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 Birchwood. See also: October | November | December.
