S
M
T
W
T
F
S
30
77°
54°
31
78°
46°
1
77°
45°
2
68°
44°
3
65°
44°
4
64°
45°
5
65°
44°
6
67°
53°
7
74°
54°
8
76°
44°
9
72°
45°
10
69°
44°
11
66°
52°
12
70°
43°
13
70°
42°
14
63°
42°
15
64°
49°
16
68°
50°
17
69°
41°
18
63°
45°
19
65°
41°
20
69°
38°
21
61°
42°
22
60°
51°
23
71°
48°
24
71°
45°
25
68°
49°
26
64°
49°
27
68°
46°
28
69°
47°
29
66°
48°
30
67°
46°
1
69°
36°
2
68°
35°
3
56°
37°
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 56° to 78°, with overnight lows between 35° and 54°. The average high for September is 68° with an average low of 45°. 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.
