S
M
T
W
T
F
S
30
86°
57°
31
89°
58°
1
89°
57°
2
88°
58°
3
88°
57°
4
87°
56°
5
86°
56°
6
83°
55°
7
80°
54°
8
87°
56°
9
88°
55°
10
87°
56°
11
80°
54°
12
86°
55°
13
87°
56°
14
88°
55°
15
85°
52°
16
86°
54°
17
85°
53°
18
77°
54°
19
77°
53°
20
82°
52°
21
78°
52°
22
83°
51°
23
78°
50°
24
75°
46°
25
74°
49°
26
77°
50°
27
80°
50°
28
81°
51°
29
81°
45°
30
80°
49°
1
78°
50°
2
79°
50°
3
79°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Merlin
Merlin's September 2026 forecast shows daily high temperatures ranging from 74° to 89°, with overnight lows between 45° and 58°. The average high for September is 83° with an average low of 53°. 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 Merlin. See also: October | November | December.
