S
M
T
W
T
F
S
30
81°
61°
31
78°
58°
1
71°
61°
2
69°
58°
3
71°
54°
4
70°
50°
5
71°
49°
6
71°
51°
7
71°
53°
8
70°
54°
9
71°
56°
10
73°
46°
11
67°
44°
12
68°
46°
13
71°
50°
14
72°
51°
15
72°
50°
16
71°
49°
17
71°
47°
18
70°
49°
19
71°
49°
20
64°
50°
21
70°
49°
22
69°
49°
23
69°
48°
24
70°
47°
25
61°
43°
26
62°
40°
27
64°
43°
28
67°
45°
29
67°
46°
30
68°
46°
1
68°
45°
2
67°
46°
3
66°
45°
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 61° to 81°, with overnight lows between 40° and 61°. The average high for September is 69° with an average low of 49°. 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.
