Key Biscayne Weather Today
Miami, United States · Updated Monday, March 16, 2026 at 4:38 PM ET
85°F
Light Rain
Feels like 92°F · H 88°F / L 83°F
Humidity
67%
Wind
17 mph
S
Visibility
6 mi
Pressure
1011
hPa
Cloud Cover
75%
Key Biscayne Weather Right Now
Key Biscayne weather today is 85°F with light rain. The high will reach 88°F and the low will drop to 83°F. It feels like 92°F outside. Humidity is at 67% with winds from the S at 17 mph. Visibility is 6 miles with 75% cloud cover and a pressure of 1011 hPa.
5-Day Forecast
Tue, Mar 17
72°F
66°F
Light Rain
Wed, Mar 18
72°F
69°F
Light Rain
Thu, Mar 19
72°F
70°F
Overcast Clouds
Fri, Mar 20
73°F
67°F
Light Rain
Sat, Mar 21
74°F
70°F
Overcast Clouds
About Key Biscayne Weather
Key Biscayne's barrier island surrounded by open Atlantic water delivers the strongest and most consistent ocean breezes in greater Miami — it's routinely the coolest spot in the metro on hot summer days and the most exposed during tropical storms.