S
M
T
W
T
F
S
30
82°
60°
31
82°
62°
1
80°
62°
2
82°
58°
3
82°
53°
4
74°
53°
5
74°
60°
6
77°
60°
7
81°
54°
8
74°
55°
9
73°
57°
10
74°
60°
11
76°
59°
12
81°
60°
13
81°
59°
14
80°
58°
15
80°
55°
16
75°
57°
17
72°
50°
18
74°
50°
19
71°
47°
20
69°
46°
21
68°
48°
22
69°
55°
23
70°
48°
24
72°
49°
25
73°
55°
26
73°
54°
27
75°
55°
28
76°
52°
29
75°
49°
30
72°
50°
1
69°
51°
2
74°
52°
3
71°
53°
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 68° to 82°, with overnight lows between 46° and 62°. The average high for September is 75° with an average low of 54°. 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.
