Island in Florida

Key Largo Weather Forecast

Key Largo weather: 78°F, mainly clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.

🌙 78°F now🕔 1:31 PM local📅 Best: January, February, April, May and November

Next 48 hours

Hour-by-hour temperature, precipitation chance and wind.

7 AM☀️78°18%12 mph
8 AM☁️79°16%9 mph
9 AM☁️81°14%9 mph
10 AM☁️82°13%11 mph
11 AM☁️84°15%9 mph
12 PM☁️85°20%9 mph
1 PM☁️84°23%10 mph
2 PM☁️85°28%9 mph
3 PM☁️83°28%12 mph
4 PM☁️81°21%12 mph
5 PM☁️81°20%10 mph
6 PM☁️80°14%11 mph
7 PM☁️80°13%11 mph
8 PM☁️79°10%11 mph
9 PM☁️78°10%9 mph
10 PM☁️78°11%9 mph
11 PM🌙78°9%15 mph
12 AM🌙78°10%12 mph
1 AM🌙78°11%6 mph
2 AM🌙78°11%4 mph
3 AM🌙78°11%6 mph
4 AM🌙78°9%6 mph
5 AM☁️78°8%6 mph
6 AM🌙78°10%7 mph
7 AM☁️78°12%7 mph
8 AM79°11%8 mph
9 AM🌤️80°15%8 mph
10 AM☁️83°20%8 mph
11 AM83°14%10 mph
12 PM☁️83°18%8 mph
1 PM☁️83°22%4 mph
2 PM☁️83°23%6 mph
3 PM☁️83°21%3 mph
4 PM☁️84°18%4 mph
5 PM☁️83°17%9 mph
6 PM☁️81°43%5 mph
7 PM☁️79°43%10 mph
8 PM☁️77°43%12 mph
9 PM☁️76°37%7 mph
10 PM☁️76°37%3 mph
11 PM🌙76°37%1 mph
12 AM🌙77°37%4 mph
1 AM🌙78°37%5 mph
2 AM☁️79°37%7 mph
3 AM🌙80°44%8 mph
4 AM🌙79°44%8 mph
5 AM☁️79°44%8 mph
6 AM☁️79°44%7 mph

Best time to go outside today

6 PM - 9 PM · comfort score 7.4/10

The best window to be outside is roughly 6 PM to 9 PM, when temperature, rain chance and wind line up best.

Weather in Key Largo right now

🌙
78°F
Mainly clear · feels like 83°F
Humidity83%
Wind10 mph NE
Gusts15 mph
UV index0 · Low
Cloud cover23%
Pressure1016 hPa
VisibilityGood · 10 mi
Air quality28 · Good
Sea temperature87°F
Wave height0.5 m
Sunrise7:08 AM
Sunset7:23 PM
Moon🌒 Waxing crescent · 30%

Source: Open-Meteo. Updated 1:31 PM, Sep 17 local time.

⚠️Wed, Sep 23: heavy rain, 1,5 in. Flooding and delays possible.
⚠️Thu, Sep 24: heavy rain, 2,8 in. Flooding and delays possible.
⚠️Fri, Sep 25: heavy rain, 2,7 in. Flooding and delays possible.

Active alerts for Key Largo

⚠️Wed, Sep 23: heavy rain, 1,5 in. Flooding and delays possible.
⚠️Thu, Sep 24: heavy rain, 2,8 in. Flooding and delays possible.
⚠️Fri, Sep 25: heavy rain, 2,7 in. Flooding and delays possible.

Derived from the forecast. No official alert feed is wired for this country yet.

See the Key Largo forecast by time range

Key Largo weather - more answers

Explore Key Largo

Every topic we hold for this place, and the same topic for the places around it.

Weather for related places

Frequently asked questions

Where is Key Largo?

Key Largo is an island in Florida. Its coordinates are 25.0865, -80.4473. It lies in North America.

What is the weather like in Key Largo right now?

It is currently 78°F (26°C) with mainly clear. Humidity is 83% and wind is 10 mph.

When is the best time to visit Key Largo?

January, February, April, May and November offer the most comfortable conditions in Key Largo, which has a temperate climate. June, September and October are usually the hardest months for outdoor plans.

What time zone is Key Largo in?

Key Largo observes America/New_York (UTC-04:00). The local time is 1:31 PM.

What is the nearest airport to Key Largo?

The closest airports are Miami International Airport (MIA), 50 mi away and Orlando International Airport (MCO), 237 mi away.

What are the top things to do in Key Largo?

Popular options include Biscayne National Park, Everglades (UNESCO World Heritage Site), Everglades National Park, South Beach, Dry Tortugas National Park and Myakka River State Park.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts.
Forecast and observationsOpen-Meteo (ECMWF and national models).
Air quality and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Climate averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National Weather Service.
MethodScores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown.

Last updated September 17, 2026 at 1:31 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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