S
M
T
W
T
F
S
30
76°
51°
31
76°
52°
1
77°
52°
2
75°
50°
3
76°
52°
4
74°
50°
5
75°
52°
6
76°
56°
7
77°
57°
8
75°
54°
9
75°
55°
10
Hist. Avg.
74°
54°
11
Hist. Avg.
74°
54°
12
Hist. Avg.
74°
53°
13
Hist. Avg.
73°
53°
14
Hist. Avg.
73°
53°
15
Hist. Avg.
73°
53°
16
Hist. Avg.
72°
53°
17
Hist. Avg.
72°
52°
18
Hist. Avg.
72°
52°
19
Hist. Avg.
71°
52°
20
Hist. Avg.
71°
52°
21
Hist. Avg.
71°
51°
22
Hist. Avg.
70°
51°
23
Hist. Avg.
70°
51°
24
Hist. Avg.
70°
51°
25
Hist. Avg.
69°
50°
26
Hist. Avg.
69°
50°
27
Hist. Avg.
68°
50°
28
Hist. Avg.
68°
50°
29
Hist. Avg.
68°
49°
30
Hist. Avg.
67°
49°
1
Hist. Avg.
67°
49°
2
Hist. Avg.
66°
48°
3
Hist. Avg.
66°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lyon
Lyon's September 2026 forecast shows daily high temperatures ranging from 74° to 77°, with overnight lows between 50° and 57°. The average high for September is 76° with an average low of 53°. 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 Lyon. See also: October | November | December.
