S
M
T
W
T
F
S
30
82°
66°
31
82°
63°
1
81°
55°
2
82°
57°
3
90°
64°
4
82°
63°
5
81°
63°
6
82°
64°
7
79°
64°
8
84°
63°
9
75°
52°
10
81°
48°
11
82°
61°
12
66°
48°
13
67°
43°
14
61°
51°
15
66°
44°
16
64°
45°
17
70°
54°
18
65°
53°
19
70°
47°
20
69°
48°
21
68°
49°
22
69°
52°
23
70°
54°
24
72°
51°
25
72°
50°
26
64°
42°
27
69°
50°
28
59°
48°
29
64°
47°
30
64°
43°
1
66°
46°
2
62°
46°
3
66°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Bertha
Bertha's September 2026 forecast shows daily high temperatures ranging from 59° to 72°, with overnight lows between 42° and 54°. The average high for September is 67° with an average low of 48°. 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 Bertha. See also: October | November | December.
