S
M
T
W
T
F
S
1
83°
76°
2
84°
76°
3
84°
76°
4
84°
75°
5
83°
75°
6
81°
74°
7
82°
75°
8
81°
74°
9
83°
75°
10
81°
74°
11
83°
75°
12
82°
75°
13
83°
74°
14
84°
73°
15
85°
74°
16
84°
74°
17
82°
73°
18
84°
73°
19
83°
70°
20
79°
69°
21
79°
70°
22
80°
73°
23
83°
73°
24
83°
72°
25
82°
72°
26
80°
71°
27
82°
72°
28
81°
72°
29
82°
73°
30
85°
71°
1
85°
72°
2
84°
71°
3
83°
70°
4
85°
66°
5
84°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
November Weather in Key Biscayne
Key Biscayne's November 2026 forecast shows daily high temperatures ranging from 79° to 85°, with overnight lows between 63° and 76°. The average high for November is 83° with an average low of 73°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how November weather will actually feel in Key Biscayne. See also: December | January | February.