S
M
T
W
T
F
S
30
85°
64°
31
82°
65°
1
80°
66°
2
80°
67°
3
81°
68°
4
81°
64°
5
84°
65°
6
80°
64°
7
79°
63°
8
78°
64°
9
78°
62°
10
80°
66°
11
82°
66°
12
77°
67°
13
82°
67°
14
78°
60°
15
76°
60°
16
Hist. Avg.
79°
63°
17
Hist. Avg.
78°
63°
18
Hist. Avg.
78°
62°
19
Hist. Avg.
78°
62°
20
Hist. Avg.
78°
62°
21
Hist. Avg.
77°
62°
22
Hist. Avg.
77°
61°
23
Hist. Avg.
77°
61°
24
Hist. Avg.
76°
60°
25
Hist. Avg.
76°
60°
26
Hist. Avg.
76°
60°
27
Hist. Avg.
76°
59°
28
Hist. Avg.
75°
59°
29
Hist. Avg.
75°
58°
30
Hist. Avg.
74°
58°
1
Hist. Avg.
74°
58°
2
Hist. Avg.
74°
57°
3
Hist. Avg.
74°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Atlantic
Atlantic's September 2026 forecast shows daily high temperatures ranging from 76° to 85°, with overnight lows between 60° and 68°. The average high for September is 80° with an average low of 65°. 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 Atlantic. See also: October | November | December.
