S
M
T
W
T
F
S
30
91°
76°
31
92°
76°
1
92°
75°
2
89°
76°
3
90°
75°
4
89°
76°
5
90°
76°
6
92°
75°
7
92°
76°
8
91°
76°
9
91°
75°
10
90°
76°
11
89°
75°
12
89°
75°
13
90°
76°
14
90°
76°
15
88°
75°
16
91°
76°
17
91°
76°
18
90°
75°
19
91°
77°
20
90°
76°
21
91°
77°
22
90°
76°
23
88°
77°
24
89°
76°
25
89°
76°
26
89°
76°
27
89°
77°
28
Hist. Avg.
86°
76°
29
Hist. Avg.
86°
76°
30
Hist. Avg.
86°
75°
1
Hist. Avg.
86°
75°
2
Hist. Avg.
86°
75°
3
Hist. Avg.
86°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Watergate
Watergate's September 2026 forecast shows daily high temperatures ranging from 88° to 92°, with overnight lows between 75° and 77°. The average high for September is 90° with an average low of 76°. 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 Watergate. See also: October | November | December.
