S
M
T
W
T
F
S
30
98°
75°
31
98°
73°
1
97°
72°
2
94°
74°
3
96°
74°
4
96°
73°
5
97°
73°
6
94°
72°
7
92°
72°
8
94°
71°
9
95°
72°
10
94°
72°
11
95°
71°
12
95°
72°
13
93°
72°
14
95°
70°
15
95°
70°
16
94°
68°
17
93°
69°
18
94°
70°
19
93°
62°
20
89°
61°
21
88°
62°
22
89°
64°
23
91°
65°
24
91°
65°
25
90°
64°
26
91°
66°
27
89°
66°
28
90°
59°
29
85°
58°
30
87°
59°
1
90°
61°
2
90°
63°
3
89°
62°
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 85° to 98°, with overnight lows between 58° and 75°. The average high for September is 93° with an average low of 68°. 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.
