Key Largo Weather Forecast
Key Largo weather: 79°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Risk assessment for Key Largo
Derived from the current forecast window - not an official warning.
Peak gusts of 26 mph and 5 thunderstorm days in the next 16 days.
Wettest single day forecast at 1,0 in, 3,9 in across the window. Flash flooding risk rises sharply above 50 mm in a day.
Active alerts for Key Largo
Derived from the forecast. No official alert feed is wired for this country yet.
16-day forecast for Key Largo
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Sep 18 | ☁️ Overcast | 85° / 77° | 30% | 22 mph | 8 |
| Sat, Sep 19 | ☁️ Overcast | 84° / 77° | 63% · 0,0 in | 10 mph | 8 |
| Sun, Sep 20 | ⛈️ Thunderstorm | 87° / 77° | 64% · 0,6 in | 10 mph | 8 |
| Mon, Sep 21 | 🌦️ Light showers | 87° / 81° | 69% · 0,1 in | 11 mph | 8 |
| Tue, Sep 22 | ☁️ Overcast | 86° / 82° | 66% | 10 mph | 6 |
| Wed, Sep 23 | 🌦️ Drizzle | 87° / 80° | 60% · 0,2 in | 12 mph | 6 |
| Thu, Sep 24 | 🌦️ Light showers | 85° / 79° | 61% · 0,4 in | 12 mph | 8 |
| Fri, Sep 25 | 🌧️ Heavy drizzle | 86° / 79° | 50% · 0,2 in | 10 mph | 7 |
| Sat, Sep 26 | 🌦️ Light drizzle | 87° / 79° | 61% · 0,0 in | 11 mph | 8 |
| Sun, Sep 27 | ⛈️ Thunderstorm | 85° / 78° | 58% · 1,0 in | 7 mph | 8 |
| Mon, Sep 28 | ⛈️ Thunderstorm | 85° / 76° | 47% · 0,3 in | 7 mph | 7 |
| Tue, Sep 29 | ⛈️ Thunderstorm | 84° / 78° | 65% · 0,4 in | 7 mph | 7 |
| Wed, Sep 30 | 🌦️ Light drizzle | 85° / 80° | 62% · 0,0 in | 8 mph | 7 |
| Thu, Oct 1 | 🌦️ Drizzle | 85° / 80° | 61% · 0,1 in | 13 mph | 7 |
| Fri, Oct 2 | ⛈️ Thunderstorm | 87° / 80° | 61% · 0,7 in | 12 mph | 7 |
| Sat, Oct 3 | ☀️ Clear sky | -- / -- | 55% | -- | — |
What this means for Key Largo
Today is about average for September. The forecast high of 85°F is in line with the 85°F typical for this month.
A 30% chance means rain is likely somewhere nearby at some point - carry a layer, but do not cancel.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 47°F.
See the Key Largo forecast by time range
Key Largo weather - more answers
Explore Key Largo
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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 79°F (26°C) with clear. Humidity is 81% and wind is 11 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 2:49 AM.
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 data | USPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, 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 19, 2026 at 2:49 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
