25.6983’ N, 80.1700’ W

Key Biscayne, Biscayne Bay, FL

84°
H 85°
L 82°
ESE
12mph
Low tide
10:54 am

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

Day Sky High / Low Precip Wind Humidity
Sun
Oct 4
Partly Cloudy
Close Hourly
85º / 82º 15% ESE 13 mph 77%
8am Partly Cloudy 84º 3% ESE 12 mph 78%
9am Mostly Sunny 85º 4% ESE 12 mph 75%
10am Mostly Sunny 86º 4% ESE 12 mph 73%
11am Partly Cloudy 85º 3% ESE 11 mph 72%
12pm Partly Cloudy 86º 2% ESE 11 mph 71%
1pm Partly Cloudy 86º 15% ESE 10 mph 71%
2pm Partly Cloudy 86º 15% ESE 10 mph 71%
3pm Partly Cloudy 85º 15% ESE 9 mph 76%
4pm Partly Cloudy 85º 15% ESE 8 mph 75%
5pm Partly Cloudy 85º 15% ESE 9 mph 76%
6pm Partly Cloudy 85º 15% E 9 mph 77%
7pm Partly Cloudy 84º 15% E 8 mph 76%
8pm Partly Cloudy 84º 15% E 8 mph 77%
9pm Partly Cloudy 84º 16% E 9 mph 79%
10pm Partly Cloudy 84º 14% E 9 mph 79%
11pm Partly Cloudy 84º 5% E 8 mph 79%
Mon
Oct 5
Partly Cloudy
View Hourly
85º / 80º 12% SE 8 mph 75%
12am Partly Cloudy 84º 10% E 9 mph 78%
1am Partly Cloudy 84º 10% E 9 mph 77%
2am Mostly Cloudy 84º 7% E 9 mph 78%
3am Mostly Cloudy 83º 9% ESE 8 mph 79%
4am Mostly Cloudy 83º 15% ESE 7 mph 79%
5am Mostly Cloudy 83º 9% ESE 7 mph 79%
6am Mostly Cloudy 83º 11% ESE 7 mph 79%
7am Mostly Cloudy 83º 13% SE 6 mph 79%
8am Cloudy 84º 13% SE 7 mph 78%
9am Mostly Cloudy 84º 7% SE 7 mph 77%
10am Mostly Cloudy 84º 7% SE 7 mph 76%
11am Partly Cloudy 84º 6% SSE 7 mph 76%
12pm Mostly Cloudy 85º 6% SE 8 mph 74%
1pm Partly Cloudy 85º 6% SE 7 mph 74%
2pm Partly Cloudy 85º 5% SE 8 mph 74%
3pm Partly Cloudy 85º 5% SE 7 mph 73%
4pm Partly Cloudy 85º 6% SE 7 mph 74%
5pm Partly Cloudy 84º 6% SSE 7 mph 74%
6pm Partly Cloudy 84º 6% SSE 6 mph 74%
7pm Mostly Cloudy 84º 13% SSE 5 mph 76%
8pm Partly Cloudy 84º 20% SSE 4 mph 76%
9pm Partly Cloudy 83º 19% SSE 4 mph 77%
10pm Mostly Cloudy 83º 13% SE 3 mph 78%
11pm Mostly Cloudy 83º 15% SE 3 mph 79%
Tue
Oct 6
Isolated Thunderstorms
View Hourly
85º / 80º 32% S 8 mph 76%
12am Mostly Cloudy 82º 21% E 2 mph 79%
1am Mostly Cloudy 82º 22% E 3 mph 80%
2am Mostly Cloudy 82º 22% ESE 2 mph 79%
3am Partly Cloudy 82º 17% SE 3 mph 80%
4am Partly Cloudy 82º 10% SE 3 mph 80%
5am Mostly Cloudy 82º 7% SE 3 mph 80%
6am Partly Cloudy 82º 8% SE 4 mph 81%
7am Partly Cloudy 81º 7% SSE 4 mph 82%
Wed
Oct 7
Thunderstorms 84º / 79º 77% SW 10 mph 78%
Thu
Oct 8
Scattered Thunderstorms 83º / 81º 55% SW 8 mph 81%
Fri
Oct 9
Partly Cloudy 85º / 82º 24% SSE 10 mph 77%
Sat
Oct 10
Scattered Thunderstorms 85º / 82º 44% SE 12 mph 79%
Sun
Oct 11
Isolated Thunderstorms 85º / 82º 45% SE 13 mph 77%

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

* Playback displays weather for the past 6 hours.

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

Sunday
High : 87ºF
ESE wind 10 to 14 kt. Sunny. Bay waters a moderate chop becoming a light chop.
Sunday Night
Low : 82ºF
E wind 8 to 11 kt. Partly cloudy. Bay waters a light chop.
Monday
High : 87ºF
SE wind around 8 kt. Mostly sunny. Bay waters a light chop becoming smooth.
Monday Night
Low : 80ºF
Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 2am. Bay waters smooth.
Tuesday
High : 87ºF
S wind 5 to 7 kt. A chance of showers and thunderstorms after 2pm. Bay waters smooth.
Tuesday Night
Low : 80ºF
Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly before 2am. Bay waters smooth.
Wednesday
High : 87ºF
SSW wind 6 to 11 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. Bay waters smooth becoming a light chop.
Wednesday Night
Low : 78ºF
SW wind around 7 kt. Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Bay waters smooth.
Thursday
High : 87ºF
SW wind around 6 kt becoming S in the afternoon. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Bay waters smooth.

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

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    Wind Speed Forecast for Key Biscayne, Biscayne Bay, FL

    SundayMondayTuesday
    Wind Speed (MPH) 12118897787423
    12pm4pm8pm12am4am8am12pm4pm8pm12am4am8am
    MPH 12118897787423
    DIR ESEESEESEEEESESESESESSEESE

    Current Weather Conditions In Key Biscayne, Biscayne Bay, FL

    As Of: 20 minutes ago

    • 84ºF
    • 93ºF
    • 12mph
    • 0º (ESE)
    • 12mph
    • Partly Cloudy
    • 10mi
    • 30.01"
    • 78%
    • 0ºF

    The weather right now in Key Biscayne, Biscayne Bay, FL is Partly Cloudy. The current temperature is 84°F, and the expected high and low for today, Sunday, October 4, 2026, are 85° high temperature and 82°F low temperature. The wind is currently blowing at 12 miles per hour, and coming from the East Southeast. The wind is gusting to 12 mph. With the wind and the atmosphere the temperature feels like 93° Fahrenheit. Expected precipitation is 3 percent, with current humidity at 78 percent, and air pressure at 30.01 in. Visibility is 10 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    Rip Current Statement - 2:40am Sun Oct 4 2026

    ...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH THIS EVENING...

    WHAT: Dangerous rip currents.

    WHERE: Coastal Palm Beach County, Coastal Broward County and
    Coastal Miami Dade County.

    WHEN: Through Sunday evening.

    IMPACTS: Rip currents can sweep even the best swimmers away
    from shore into deeper water.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Swim near a lifeguard. If caught in a rip current, relax and
    float. Don't swim against the current. If able, swim in a
    direction following the shoreline. If unable to escape, face the
    shore and call or wave for help.

    &&