S
M
T
W
T
F
S
30
70°
61°
31
66°
57°
1
68°
54°
2
68°
55°
3
72°
57°
4
79°
61°
5
68°
54°
6
72°
50°
7
82°
61°
8
79°
59°
9
63°
50°
10
63°
46°
11
72°
46°
12
77°
49°
13
69°
56°
14
75°
49°
15
81°
56°
16
69°
45°
17
69°
46°
18
69°
47°
19
71°
51°
20
71°
50°
21
68°
48°
22
69°
48°
23
67°
45°
24
68°
53°
25
68°
49°
26
60°
48°
27
61°
52°
28
63°
46°
29
59°
44°
30
58°
46°
1
58°
46°
2
59°
44°
3
61°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Merxheim
Merxheim's September 2026 forecast shows daily high temperatures ranging from 58° to 81°, with overnight lows between 44° and 56°. 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 Merxheim. See also: October | November | December.
