S
M
T
W
T
F
S
30
88°
65°
31
86°
59°
1
85°
59°
2
85°
60°
3
86°
64°
4
87°
64°
5
90°
59°
6
83°
58°
7
83°
63°
8
87°
61°
9
83°
56°
10
82°
58°
11
85°
56°
12
82°
55°
13
81°
54°
14
80°
53°
15
81°
54°
16
81°
53°
17
84°
55°
18
86°
58°
19
86°
52°
20
82°
51°
21
Hist. Avg.
81°
56°
22
Hist. Avg.
81°
56°
23
Hist. Avg.
80°
55°
24
Hist. Avg.
80°
55°
25
Hist. Avg.
80°
54°
26
Hist. Avg.
79°
54°
27
Hist. Avg.
79°
54°
28
Hist. Avg.
78°
53°
29
Hist. Avg.
78°
53°
30
Hist. Avg.
77°
52°
1
Hist. Avg.
77°
52°
2
Hist. Avg.
76°
52°
3
Hist. Avg.
76°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Jay
Jay's September 2026 forecast shows daily high temperatures ranging from 80° to 90°, with overnight lows between 51° and 65°. The average high for September is 84° with an average low of 58°. 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 Jay. See also: October | November | December.