S
M
T
W
T
F
S
30
87°
67°
31
86°
61°
1
83°
60°
2
79°
61°
3
81°
62°
4
81°
61°
5
82°
61°
6
78°
62°
7
78°
60°
8
79°
62°
9
79°
60°
10
77°
59°
11
80°
61°
12
81°
60°
13
80°
59°
14
78°
58°
15
77°
59°
16
77°
58°
17
78°
57°
18
76°
57°
19
77°
62°
20
76°
61°
21
79°
55°
22
74°
54°
23
Hist. Avg.
79°
59°
24
Hist. Avg.
79°
59°
25
Hist. Avg.
78°
58°
26
Hist. Avg.
78°
58°
27
Hist. Avg.
78°
58°
28
Hist. Avg.
77°
57°
29
Hist. Avg.
77°
57°
30
Hist. Avg.
77°
56°
1
Hist. Avg.
76°
56°
2
Hist. Avg.
76°
56°
3
Hist. Avg.
76°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Foggy Bottom
Foggy Bottom's September 2026 forecast shows daily high temperatures ranging from 74° to 87°, with overnight lows between 54° and 67°. The average high for September is 79° with an average low of 60°. 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 Foggy Bottom. See also: October | November | December.
