Key Biscayne, Biscayne Bay, FL Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Mon
Jul 13 		Partly Cloudy
Close Hourly 		-º / 80º 5% ENE 11 mph 74%
7pm Mostly Sunny 87º 3% ENE 11 mph 68%
8pm Sunny 86º 1% E 8 mph 66%
9pm Mostly Clear 86º 2% ESE 6 mph 66%
10pm Partly Cloudy 85º 2% ENE 6 mph 70%
11pm Partly Cloudy 84º 2% NE 9 mph 74%
Tue
Jul 14 		Mostly Sunny
View Hourly 		89º / 80º 5% ESE 10 mph 69%
12am Partly Cloudy 83º 2% NNE 9 mph 75%
1am Partly Cloudy 81º 2% NNE 9 mph 78%
2am Clear 81º 4% NE 9 mph 78%
3am Clear 82º 5% ENE 8 mph 79%
4am Partly Cloudy 83º 5% ENE 7 mph 80%
5am Partly Cloudy 83º 5% E 7 mph 79%
6am Mostly Clear 83º 5% ESE 6 mph 78%
7am Sunny 83º 5% ESE 7 mph 77%
8am Sunny 84º 4% ESE 6 mph 76%
9am Mostly Sunny 85º 4% ESE 8 mph 72%
10am Mostly Sunny 86º 3% ESE 8 mph 70%
11am Partly Cloudy 87º 4% ESE 8 mph 69%
12pm Partly Cloudy 87º 3% ESE 8 mph 68%
1pm Mostly Sunny 88º 3% ESE 9 mph 66%
2pm Sunny 88º 3% ESE 10 mph 65%
3pm Sunny 88º 3% ESE 9 mph 65%
4pm Sunny 88º 3% ESE 9 mph 64%
5pm Mostly Sunny 88º 3% ESE 9 mph 64%
6pm Mostly Sunny 87º 3% ESE 9 mph 66%
7pm Mostly Sunny 87º 3% ESE 7 mph 68%
8pm Mostly Sunny 86º 3% ESE 6 mph 69%
9pm Partly Cloudy 85º 3% NE 6 mph 71%
10pm Partly Cloudy 84º 4% NNE 6 mph 74%
11pm Mostly Clear 83º 4% NE 7 mph 74%
Wed
Jul 15 		Mostly Sunny
View Hourly 		90º / 81º 10% E 9 mph 67%
12am Mostly Clear 82º 4% NE 5 mph 76%
1am Clear 82º 4% NE 5 mph 75%
2am Mostly Clear 82º 3% NNE 5 mph 75%
3am Clear 82º 4% NE 5 mph 77%
4am Clear 81º 4% NE 4 mph 77%
5am Clear 81º 4% NE 5 mph 78%
6am Mostly Clear 81º 4% NE 5 mph 77%
7am Mostly Sunny 81º 4% NE 5 mph 77%
8am Mostly Sunny 83º 11% ENE 5 mph 76%
9am Partly Cloudy 85º 4% E 5 mph 71%
10am Mostly Sunny 86º 4% E 7 mph 69%
11am Mostly Sunny 87º 3% E 7 mph 66%
12pm Mostly Sunny 88º 3% E 7 mph 65%
1pm Partly Cloudy 88º 3% E 8 mph 65%
2pm Partly Cloudy 89º 2% ESE 9 mph 63%
3pm Partly Cloudy 88º 2% ESE 9 mph 63%
4pm Partly Cloudy 88º 3% ESE 9 mph 64%
5pm Partly Cloudy 88º 4% ESE 9 mph 63%
6pm Partly Cloudy 88º 5% ESE 9 mph 65%
Thu
Jul 16 		Partly Cloudy 90º / 82º 11% E 9 mph 66%
Fri
Jul 17 		Isolated Thunderstorms 89º / 82º 33% SSE 10 mph 67%
Sat
Jul 18 		Partly Cloudy 88º / 82º 24% SSE 12 mph 69%
Sun
Jul 19 		Partly Cloudy 89º / 82º 21% SSE 13 mph 66%
Mon
Jul 20 		PM Thunderstorms 88º / 81º 37% S 13 mph 68%

Weather Radar for Key Biscayne, Biscayne Bay, FL See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Key Biscayne, Biscayne Bay, FL

This Afternoon
High : 90ºF
SE wind around 8 kt. Sunny. Bay waters a light chop.
Tonight
Low : 85ºF
SE wind 7 to 9 kt becoming N in the evening. Mostly clear. Bay waters a light chop.
Tuesday
High : 90ºF
SE wind around 8 kt. Sunny. Bay waters a light chop.
Tuesday Night
Low : 84ºF
ESE wind around 8 kt. Partly cloudy. Bay waters a light chop.
Wednesday
High : 90ºF
ESE wind 6 to 10 kt. Sunny. Bay waters smooth becoming a light chop.
Wednesday Night
Low : 84ºF
SE wind 5 to 9 kt. Partly cloudy. Bay waters a light chop becoming smooth.
Thursday
High : 90ºF
Variable winds less than 5 kt becoming ESE 5 to 9 kt in the afternoon. Mostly sunny. Bay waters smooth becoming a light chop.
Thursday Night
Low : 84ºF
SSE wind 6 to 9 kt. Partly cloudy. Bay waters a light chop becoming smooth.
Friday
High : 90ºF
Variable winds less than 5 kt becoming SE 5 to 10 kt in the afternoon. Mostly sunny. Bay waters smooth becoming a light chop.

NOAA Buoy Data Near Key Biscayne, Biscayne Bay, FL See Map

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    Wind Speed Forecast for Key Biscayne, Biscayne Bay, FL

    MondayTuesdayWednesday
    Wind Speed (MPH) 1198789775579
    11pm3am7am11am3pm7pm11pm3am7am11am3pm7pm
    MPH 1198789775579
    DIR ENENEENEESEESEESEESENENENEEESE

    Current Weather Conditions In Key Biscayne, Biscayne Bay, FL

    As Of: 22 minutes ago

    • 87ºF
    • 96ºF
    • 11mph
    • 0º (ENE)
    • 11mph
    • Mostly Sunny
    • 10mi
    • 30.08"
    • 68%
    • 0ºF

    The weather right now in Key Biscayne, Biscayne Bay, FL is Mostly Sunny. The current temperature is 87°F, and the expected high and low for today, Monday, July 13, 2026, are -° high temperature and 80°F low temperature. The wind is currently blowing at 11 miles per hour, and coming from the East Northeast. The wind is gusting to 11 mph. With the wind and the atmosphere the temperature feels like 96° Fahrenheit. Expected precipitation is 3 percent, with current humidity at 68 percent, and air pressure at 30.08 in. Visibility is 10 nautical miles. There are no current weather alert(s).