S
M
T
W
T
F
S
30
94°
71°
31
96°
71°
1
99°
72°
2
99°
72°
3
97°
73°
4
94°
73°
5
92°
72°
6
97°
72°
7
96°
74°
8
95°
73°
9
94°
72°
10
93°
70°
11
94°
71°
12
93°
71°
13
93°
68°
14
92°
69°
15
93°
67°
16
84°
69°
17
85°
69°
18
84°
69°
19
86°
68°
20
86°
69°
21
89°
69°
22
90°
68°
23
90°
68°
24
89°
67°
25
86°
68°
26
82°
67°
27
85°
62°
28
81°
58°
29
80°
57°
30
81°
57°
1
80°
58°
2
83°
58°
3
79°
57°
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 79° to 99°, with overnight lows between 57° and 74°. The average high for September is 89° with an average low of 67°. 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.
