S
M
T
W
T
F
S
30
83°
53°
31
81°
47°
1
75°
47°
2
74°
48°
3
74°
47°
4
75°
47°
5
73°
46°
6
73°
46°
7
74°
47°
8
75°
49°
9
73°
50°
10
71°
46°
11
72°
47°
12
76°
46°
13
73°
49°
14
75°
50°
15
70°
45°
16
70°
45°
17
68°
44°
18
70°
47°
19
69°
46°
20
75°
51°
21
68°
42°
22
67°
42°
23
Hist. Avg.
69°
46°
24
Hist. Avg.
69°
45°
25
Hist. Avg.
69°
45°
26
Hist. Avg.
68°
45°
27
Hist. Avg.
68°
44°
28
Hist. Avg.
67°
44°
29
Hist. Avg.
67°
44°
30
Hist. Avg.
66°
43°
1
Hist. Avg.
66°
43°
2
Hist. Avg.
66°
42°
3
Hist. Avg.
65°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Jackson
Jackson's September 2026 forecast shows daily high temperatures ranging from 67° to 83°, with overnight lows between 42° and 53°. The average high for September is 73° with an average low of 47°. 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.