Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Summer is around the corner. Here's what AccuWeather is calling for across the U.S. Chevron right
More cool spells, risks of frosts and freezes coming to Midwest, Northeast. See the forecast. Chevron right

Key Biscayne, FL

75°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Key Biscayne

Florida

75°
No results found.
Try searching for a city, zip code or point of interest.
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

Today's Weather

Mon, May 4

A thick cloud cover with a couple of thunderstorms; breezy this afternoon Hi: 81°

Tonight: Breezy this evening; otherwise, partly cloudy with a thunderstorm around late Lo: 74°

Current Weather

5:42 AM

75°F
RealFeel® 82°
Mostly cloudy More Details
Wind WNW 5 mph
Wind Gusts 6 mph
Air Quality Excellent

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

6 AM 76°
rain drop 17%
7 AM 75°
rain drop 22%
8 AM 75°
rain drop 46%
9 AM 76°
rain drop 49%
10 AM 77°
rain drop 54%
11 AM 78°
rain drop 43%
12 PM 77°
rain drop 51%
1 PM 78°
rain drop 47%
2 PM 81°
rain drop 46%
3 PM 79°
rain drop 49%
4 PM 77°
rain drop 54%
5 PM 78°
rain drop 43%

10-Day Weather Forecast

Today

5/4

81° 74°

A couple of thunderstorms

Night: A thunderstorm in spots late
88%

Tue

5/5

82° 75°

A stray afternoon t-shower

Clouds breaking; humid
55%

Wed

5/6

84° 78°

A stray shower in the morning

Mainly clear
49%

Thu

5/7

85° 77°

Partly sunny and humid

Partly cloudy and humid
1%

Fri

5/8

84° 76°

Mostly sunny and humid

Mainly clear and humid
16%

Sat

5/9

83° 79°

Humid with a stray t-storm

Mainly clear and humid
55%

Sun

5/10

84° 77°

High clouds and humid

Cloudy, a few showers; humid
2%

Mon

5/11

83° 76°

Humid; a stray a.m. t-storm

Mainly clear and humid
40%

Tue

5/12

84° 75°

A couple of t-storms; humid

Partly cloudy and humid
73%

Wed

5/13

84° 77°

Humid with a little rain

Humid; a little evening rain
55%

Sun & Moon

13 hrs 11 mins
Rise 6:42 AM
Set 7:53 PM
Waning Gibbous
Rise 10:52 PM
Set 9:14 AM

Air Quality

See More
Air Quality Excellent

The air quality is ideal for most individuals; enjoy your normal outdoor activities.

Allergy Outlook

See All
Tree Pollen Moderate 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

Turbulent temperatures, more freezes ahead for Midwest, Northeast

26 minutes ago

Weather News

5 killed in small plane crash in Texas, authorities say

2 days ago

Weather News

Camp Mystic halts plans to reopen this summer

2 days ago

Weather Forecasts

High-altitude storm to bring gusty thunderstorms to California

27 minutes ago

Severe Weather

After lull, dangerous storms to refire in central US starting Monday

22 minutes ago

 More Stories

Featured Stories

Astronomy

May's biggest astronomy events include shooting stars, rare Blue Moon

2 days ago

Recreation

Watch: Yellowstone hot spring erupts twice in 2 days

2 days ago

Severe Weather

First tornado in nearly 2 years confirmed in West Virginia

1 day ago

Astronomy

SpaceX rocket debris is on a collision course with the moon

3 days ago

Severe Weather

Texas police rescue mom from surging floodwater using jumper cables

3 days 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

...

...

...