S
M
T
W
T
F
S
30
87°
62°
31
86°
71°
1
94°
73°
2
86°
75°
3
96°
73°
4
89°
67°
5
82°
65°
6
77°
60°
7
80°
64°
8
82°
65°
9
83°
64°
10
82°
65°
11
83°
63°
12
78°
63°
13
77°
64°
14
82°
66°
15
78°
65°
16
77°
66°
17
76°
61°
18
75°
57°
19
74°
59°
20
74°
61°
21
78°
64°
22
80°
64°
23
82°
65°
24
82°
63°
25
79°
62°
26
79°
62°
27
80°
63°
28
79°
62°
29
80°
61°
30
75°
59°
1
71°
58°
2
73°
60°
3
77°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Georgetown
Georgetown's September 2026 forecast shows daily high temperatures ranging from 71° to 96°, with overnight lows between 57° and 75°. The average high for September is 80° with an average low of 64°. 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 Georgetown. See also: October | November | December.
