S
M
T
W
T
F
S
30
88°
71°
31
93°
71°
1
96°
71°
2
97°
74°
3
97°
76°
4
96°
76°
5
96°
75°
6
93°
72°
7
82°
70°
8
86°
67°
9
90°
66°
10
93°
69°
11
96°
72°
12
82°
70°
13
90°
70°
14
92°
74°
15
80°
72°
16
87°
69°
17
90°
69°
18
94°
72°
19
89°
73°
20
89°
69°
21
91°
70°
22
84°
71°
23
73°
60°
24
65°
58°
25
78°
56°
26
81°
49°
27
82°
54°
28
80°
53°
29
82°
61°
30
84°
61°
1
86°
61°
2
87°
66°
3
84°
65°
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 84° to 87°, with overnight lows between 61° and 66°. The average high for September is 86° 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.
