S
M
T
W
T
F
S
28
84°
70°
29
84°
75°
30
84°
72°
31
86°
70°
1
86°
70°
2
84°
72°
3
86°
74°
4
86°
74°
5
86°
73°
6
85°
71°
7
85°
72°
8
86°
72°
9
86°
74°
10
87°
75°
11
84°
74°
12
86°
73°
13
87°
75°
14
88°
77°
15
88°
75°
16
86°
76°
17
87°
73°
18
86°
75°
19
86°
75°
20
86°
75°
21
84°
74°
22
81°
73°
23
84°
74°
24
84°
74°
25
85°
74°
26
85°
72°
27
85°
77°
28
85°
74°
29
85°
73°
30
85°
78°
31
86°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Key
Key's January 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for January is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Key. See also: February | March | April.
