S
M
T
W
T
F
S
30
90°
69°
31
93°
71°
1
96°
70°
2
97°
71°
3
98°
73°
4
95°
71°
5
100°
70°
6
99°
70°
7
85°
70°
8
90°
66°
9
90°
69°
10
86°
69°
11
90°
69°
12
87°
71°
13
89°
67°
14
87°
65°
15
86°
66°
16
88°
64°
17
85°
61°
18
84°
60°
19
81°
59°
20
82°
59°
21
79°
58°
22
86°
62°
23
85°
62°
24
85°
61°
25
84°
61°
26
85°
60°
27
85°
61°
28
84°
62°
29
84°
61°
30
83°
60°
1
84°
60°
2
82°
58°
3
79°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Jackson
Jackson's September 2026 forecast shows daily high temperatures ranging from 79° to 90°, with overnight lows between 56° and 71°. The average high for September is 85° with an average low of 63°. 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 Jackson. See also: October | November | December.
