S
M
T
W
T
F
S
30
84°
64°
31
86°
68°
1
89°
69°
2
89°
68°
3
88°
66°
4
87°
68°
5
88°
67°
6
84°
67°
7
82°
66°
8
82°
67°
9
86°
62°
10
85°
61°
11
81°
67°
12
85°
66°
13
86°
65°
14
81°
66°
15
86°
65°
16
85°
66°
17
Hist. Avg.
80°
64°
18
Hist. Avg.
80°
63°
19
Hist. Avg.
80°
63°
20
Hist. Avg.
79°
63°
21
Hist. Avg.
79°
62°
22
Hist. Avg.
78°
62°
23
Hist. Avg.
78°
62°
24
Hist. Avg.
78°
61°
25
Hist. Avg.
77°
61°
26
Hist. Avg.
77°
60°
27
Hist. Avg.
76°
60°
28
Hist. Avg.
76°
60°
29
Hist. Avg.
76°
59°
30
Hist. Avg.
75°
59°
1
Hist. Avg.
75°
58°
2
Hist. Avg.
75°
58°
3
Hist. Avg.
74°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in RFK Stadium
RFK Stadium's September 2026 forecast shows daily high temperatures ranging from 81° to 89°, with overnight lows between 61° and 69°. The average high for September is 85° with an average low of 66°. 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 RFK Stadium. See also: October | November | December.
