Weather StoryAlmanac, microseasons, and the day's weather story.

Weather in Key Largo, Florida

Flowers spill across the islands. Day 59 of spring. Read this microseason across nine climate regions →

Key Largo, FL
Sunday, May 17 at 12:51 AM
81
°
Overcast
Feels like
84°
Humidity
71%
Wind
12 mph
Sunrise
6:36 AM
Sunset
7:59 PM
Key Largo, FL
Hour by hour · 24h
81°
8p
81°
9p
80°
10p
79°
11p
78°
12a
78°
1a
78°
2a
78°
3a
78°
4a
75°
5a
77°
6a
75°
7a
76°
8a
80°
9a
82°
10a
84°
11a
85°
12p
86°
1p
85°
2p
86°
3p
86°
4p
85°
5p
86°
6p
82°
7p
L 75°H 86°
Key Largo, FL
7-day forecast
  1. Today
    May 16
    Thunderstorm
    87°74°
  2. Sunday
    May 17
    Thunderstorm
    18%
    85°78°
  3. Monday
    May 18
    Light Drizzle
    22%
    85°79°
  4. Tuesday
    May 19
    Light Drizzle
    23%
    85°79°
  5. Wednesday
    May 20
    Light Drizzle
    16%
    85°79°
  6. Thursday
    May 21
    Overcast
    86°79°
  7. Friday
    May 22
    Light Drizzle
    13%
    86°79°
Key Largo, FL
Anemometer · 24h winds · from true
NESW
From · True
E
094° · backing 77°
Direction
E
094°
Sustained
12
mph
Gust
16
mph
Peak 24h
17
avg 9
Beaufort · 3 · GENTLE BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 9 · pk 17 @ 5:00p
−24h−18h−12h−6hnow
Light breeze backing 77° from the e.
Key Largo, FL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1017.3
-0.2 mb in 3h · falling · 30.04 inHg
Now
1017.3
mb
3h
-0.2
mb
12h
-1.3
mb
24h
+0.7
mb
Regime · FAIR
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10151019
−24h−18h−12h−6hnow
Fair, steady air — a quiet anticyclone holds the sky.
Key Largo, FL
Air quality
41
AQI
Good
PM 2.5
4.4 μg/m³
PM 10
6.4 μg/m³
NO₂
1.2 μg/m³
Ozone
86.0 μg/m³
UV Index
0.0 Low
Key Largo, FL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:13 AM
Sunrise
6:36 AM
Daylight
13h 23m
Sunset
7:59 PM
Civil dusk
12:25 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Key Largo, FL
The moon
New Moon
0% illuminated
Moonrise
10:55 AM
Moonset
12:15 AM
In sign
♉︎ Taurus
Key Largo, FL
Microseason · 28 of 72
May 16–20

Flowers spill across the islands

bird
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Key Largo at a glance

  • Today vs. normal: 6°F below the seasonal normal for this latitude
  • Last frost: January 17 (climatological average for this latitude)
  • Microseason: 28 of 72, May 16–20
  • Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.

Right now in the garden

Peak growing season

As of May 17, 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.

ZIP codes in Key Largo

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.