S
M
T
W
T
F
S
27
73°
68°
28
77°
68°
29
79°
67°
30
80°
68°
31
80°
64°
1
79°
59°
2
79°
61°
3
72°
61°
4
72°
62°
5
73°
65°
6
74°
64°
7
73°
65°
8
75°
66°
9
77°
65°
10
77°
64°
11
78°
63°
12
74°
62°
13
76°
65°
14
78°
62°
15
78°
59°
16
Hist. Avg.
76°
56°
17
Hist. Avg.
76°
56°
18
Hist. Avg.
76°
56°
19
Hist. Avg.
76°
56°
20
Hist. Avg.
76°
56°
21
Hist. Avg.
77°
55°
22
Hist. Avg.
77°
55°
23
Hist. Avg.
77°
55°
24
Hist. Avg.
77°
55°
25
Hist. Avg.
77°
55°
26
Hist. Avg.
77°
55°
27
Hist. Avg.
77°
55°
28
Hist. Avg.
77°
56°
29
Hist. Avg.
77°
56°
30
Hist. Avg.
77°
56°
31
Hist. Avg.
77°
56°
1
Hist. Avg.
77°
56°
2
Hist. Avg.
77°
56°
3
Hist. Avg.
77°
56°
4
Hist. Avg.
77°
56°
5
Hist. Avg.
77°
56°
6
Hist. Avg.
77°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Key Largo
Key Largo's January 2027 forecast shows daily high temperatures ranging from 72° to 80°, with overnight lows between 59° and 68°. The average high for January is 76° with an average low of 64°. 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 Largo. See also: February | March | April.
