S
M
T
W
T
F
S
1
81°
62°
2
84°
63°
3
82°
65°
4
86°
66°
5
85°
68°
6
89°
67°
7
87°
67°
8
83°
67°
9
85°
69°
10
88°
67°
11
86°
70°
12
82°
64°
13
80°
68°
14
83°
65°
15
82°
70°
16
82°
47°
17
60°
45°
18
70°
49°
19
74°
51°
20
78°
54°
21
79°
57°
22
79°
59°
23
77°
61°
24
79°
67°
25
85°
63°
26
83°
66°
27
86°
65°
28
88°
68°
29
83°
65°
30
81°
63°
31
87°
64°
1
86°
62°
2
86°
64°
3
88°
67°
4
87°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Keys
Keys's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March 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 March weather will actually feel in Keys. See also: April | May | June.
