S
M
T
W
T
F
S
30
73°
58°
31
74°
56°
1
73°
52°
2
68°
50°
3
67°
49°
4
68°
50°
5
68°
51°
6
72°
57°
7
76°
56°
8
74°
57°
9
75°
57°
10
75°
56°
11
73°
56°
12
75°
55°
13
76°
57°
14
76°
46°
15
64°
48°
16
63°
45°
17
65°
48°
18
67°
46°
19
64°
47°
20
64°
46°
21
71°
51°
22
72°
51°
23
72°
42°
24
64°
40°
25
63°
43°
26
68°
49°
27
69°
50°
28
68°
44°
29
64°
38°
30
58°
40°
1
59°
47°
2
64°
43°
3
66°
47°
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 58° to 76°, with overnight lows between 38° and 58°. The average high for September is 69° with an average low of 49°. 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.
