Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
A new heat dome is set to expand across the central and eastern US. Click for the forecast. Chevron right

Key Biscayne, FL

86°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Key Biscayne

Florida

86°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Key Biscayne, FL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today

Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities
Heat Advisory

Today's Weather

Wed, Jul 8

Mostly sunny and humid; a thunderstorm in spots this afternoon Hi: 87°

Tonight: Partly cloudy, very warm and humid Lo: 85°

Current Weather

2:55 PM

86°F
RealFeel® 102°
Sunny More Details
RealFeel Shade™ 93°
Heat Index 96°
Wind ESE 7 mph
Wind Gusts 9 mph
Air Quality Poor

Looking Ahead

Watch for a strong thunderstorm Sunday evening

Key Biscayne Weather Radar

Key Biscayne Weather Radar
Static Radar Temporarily Unavailable
Thank you for your patience as we work to get everything up and running again.
Refresh Page
Clouds
Temperature

Hourly Weather

3 PM 87°
rain drop 51%
4 PM 87°
rain drop 47%
5 PM 87°
rain drop 19%
6 PM 87°
rain drop 19%
7 PM 87°
rain drop 13%
8 PM 85°
rain drop 0%
9 PM 85°
rain drop 0%
10 PM 87°
rain drop 0%
11 PM 86°
rain drop 0%
12 AM 86°
rain drop 0%
1 AM 86°
rain drop 0%
2 AM 86°
rain drop 0%

10-Day Weather Forecast

Today

7/8

87° 85°

A t-storm around in the p.m.

Night: Partly cloudy and very warm

55%

Thu

7/9

89° 84°

Partly sunny and humid

Partly cloudy and very warm

3%

Fri

7/10

88° 82°

Humid; a stray p.m. t-storm

A couple of t-storms; humid

55%

Sat

7/11

87° 84°

A t-storm around in the p.m.

A thunderstorm around early

55%

Sun

7/12

87° 83°

Decreasing clouds and humid

Humid; a strong t-storm early

25%

Mon

7/13

89° 83°

Partly sunny and humid

Partly cloudy and humid

25%

Tue

7/14

88° 82°

Mostly sunny and humid

Mainly clear and humid

25%

Wed

7/15

89° 84°

Radiant sunshine and humid

Mainly clear, a shower late

2%

Thu

7/16

90° 83°

Humid; a stray morning shower

Clear, warm and humid

49%

Fri

7/17

89° 83°

Humid; a few morning showers

Humid; a touch of rain late

57%

Sun & Moon

13 hrs 40 mins
Rise 6:36 AM
Set 8:16 PM
Waning Crescent
Rise 1:05 AM
Set 2:23 PM

Air Quality

See More
Air Quality Poor

The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.

Allergy Outlook

See All
Tree Pollen Low Data is not supported in this location Ragweed Pollen Low Data is not supported in this location Mold Low Data is not supported in this location Grass Pollen Low Data is not supported in this location Dust & Dander Extreme Data is not supported in this location

Top Stories

Weather Forecasts

Next heat dome to bring 100 F heat to Midwest; perhaps East again

2 hours ago

Hurricane

Atlantic hurricane season off to a slow start as El Niño strengthens

8 hours ago

Severe Weather

Tornado in Alaska? Video shows rare funnel cloud in remote landscape

1 day ago

Live Blog

Live: World Cup 2026 weather updates

LATEST ENTRY

Quarterfinals to commence with heat on Thursday

1 day ago

Severe Weather

Storms with flooding, high winds poised in central and southeastern US

8 hours ago

More Stories

Featured Stories

Severe Weather

Storms, heat and floods disrupt America’s 250th birthday celebrations

1 day ago

Health

NYC Legionnaires' disease outbreak jumps to 14 confirmed cases

2 days ago

Weather News

Mother dies trying to save son from Tennessee floodwaters

2 days ago

Travel

Plane makes hard landing into New York’s East River, officials say

2 days ago

Weather News

Toll from Venezuela earthquakes rises to 3,342, more than 16K injured

1 day ago

World North America United States Florida Key Biscayne

Weather Near Key Biscayne:

  • Fort Lauderdale, FL
  • Hialeah, FL
  • Miami, FL
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...