S
M
T
W
T
F
S
30
94°
72°
31
93°
70°
1
93°
68°
2
92°
65°
3
92°
67°
4
93°
72°
5
94°
71°
6
93°
70°
7
92°
71°
8
91°
70°
9
93°
71°
10
93°
69°
11
92°
64°
12
86°
66°
13
89°
65°
14
89°
66°
15
88°
67°
16
84°
66°
17
88°
60°
18
88°
56°
19
81°
57°
20
78°
58°
21
79°
62°
22
81°
64°
23
86°
64°
24
85°
65°
25
87°
63°
26
86°
62°
27
83°
61°
28
86°
55°
29
80°
57°
30
86°
62°
1
85°
62°
2
Hist. Avg.
79°
56°
3
Hist. Avg.
79°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Meridian
Meridian's September 2026 forecast shows daily high temperatures ranging from 78° to 94°, with overnight lows between 55° and 72°. The average high for September is 88° with an average low of 65°. 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 Meridian. See also: October | November | December.