S
M
T
W
T
F
S
30
84°
74°
31
88°
72°
1
89°
74°
2
91°
72°
3
88°
72°
4
91°
73°
5
95°
73°
6
88°
72°
7
84°
70°
8
86°
70°
9
86°
68°
10
84°
72°
11
86°
72°
12
90°
70°
13
91°
73°
14
91°
73°
15
82°
72°
16
84°
63°
17
86°
63°
18
90°
64°
19
86°
70°
20
86°
68°
21
88°
70°
22
82°
70°
23
77°
68°
24
73°
58°
25
75°
55°
26
79°
57°
27
80°
62°
28
80°
66°
29
81°
69°
30
82°
70°
1
82°
72°
2
81°
69°
3
80°
70°
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 73° to 82°, with overnight lows between 55° and 72°. The average high for September is 79° 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 Georgetown. See also: October | November | December.
