Key Largo, Florida Weather
First trades stir the ceiba canopy. Day 77 of spring. Read this microseason across nine climate regions →
Key Largo weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Showers71%0.28″81°75°—
- FridayJun 5Heavy Showers34%1.8″81°75°0°
- SaturdayJun 6Overcast31%—83°74°+2°
- SundayJun 7Light Drizzle22%—84°77°+1°
- MondayJun 8Light Showers16%—86°78°+2°
- TuesdayJun 9Drizzle43%—86°80°0°
- WednesdayJun 10Showers58%1.2″81°75°-5°
Ozone at AQI 41. AQI flat over the last 6 hours (within ±3 points). Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 41. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 41
- UV peak
- 0.2 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
PM × Wind × Precip
PM2.5/PM10 ratio 0.65 with 14 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.65
- Wind
- breezy
- Recent rain
- 1h in last 6h
- Pattern
- transport
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 3:09 AM
- Moonset
- 2:00 PM
- In sign
- ♒︎ Aquarius
First trades stir the ceiba canopy
Key Largo at a glance
- Today vs. normal: 15°F below the seasonal normal for this latitude
- Last frost: January 17 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Key Largo
SPC has placed Key Largo in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.