S
M
T
W
T
F
S
30
73°
61°
31
70°
57°
1
72°
55°
2
73°
54°
3
73°
55°
4
82°
61°
5
72°
52°
6
73°
48°
7
85°
62°
8
89°
62°
9
67°
50°
10
69°
48°
11
71°
50°
12
72°
51°
13
74°
54°
14
75°
53°
15
78°
57°
16
74°
53°
17
70°
53°
18
70°
51°
19
71°
52°
20
68°
51°
21
67°
53°
22
67°
53°
23
69°
52°
24
70°
52°
25
70°
50°
26
68°
46°
27
63°
44°
28
64°
43°
29
64°
43°
30
63°
50°
1
63°
46°
2
61°
45°
3
64°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Theilheim
Theilheim's September 2026 forecast shows daily high temperatures ranging from 61° to 89°, with overnight lows between 43° and 62°. The average high for September is 70° 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 Theilheim. See also: October | November | December.
