S
M
T
W
T
F
S
30
88°
71°
31
93°
71°
1
96°
71°
2
97°
74°
3
97°
72°
4
97°
72°
5
96°
71°
6
89°
70°
7
83°
64°
8
87°
68°
9
88°
67°
10
93°
66°
11
93°
66°
12
90°
67°
13
89°
66°
14
87°
65°
15
88°
61°
16
79°
65°
17
78°
64°
18
76°
64°
19
77°
65°
20
78°
65°
21
78°
64°
22
79°
64°
23
82°
63°
24
80°
63°
25
76°
62°
26
78°
63°
27
81°
57°
28
75°
53°
29
73°
52°
30
74°
52°
1
73°
53°
2
73°
59°
3
71°
58°
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 97°, with overnight lows between 52° and 72°. The average high for September is 83° with an average low of 63°. 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.
