S
M
T
W
T
F
S
30
85°
64°
31
88°
63°
1
88°
64°
2
93°
68°
3
93°
70°
4
92°
68°
5
92°
66°
6
87°
66°
7
83°
63°
8
84°
63°
9
84°
64°
10
89°
63°
11
84°
65°
12
85°
65°
13
85°
63°
14
82°
62°
15
84°
58°
16
75°
62°
17
75°
61°
18
73°
61°
19
74°
62°
20
76°
61°
21
78°
61°
22
75°
60°
23
79°
60°
24
78°
59°
25
74°
60°
26
77°
60°
27
78°
53°
28
71°
50°
29
70°
49°
30
71°
48°
1
70°
51°
2
71°
56°
3
69°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Helen
Helen's September 2026 forecast shows daily high temperatures ranging from 69° to 93°, with overnight lows between 48° and 70°. The average high for September is 80° with an average low of 60°. 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 Helen. See also: October | November | December.