Key Largo weather live forecast

Today's maximum temperature in Key Largo is expected to be 86°F. Select a day from the live weather forecast for Key Largo, Florida, USA for more weather parameters.

Thursday
17th Sep
86

82

5

7
Friday
18th Sep
86

82

6

9
Saturday
19th Sep
86

81

7

7
Sunday
20th Sep
86

81

6

7
Monday
21st Sep
86

82

5

9

5-day weather forecast updated at 04:01 on Thursday 17th September 2026 GMT

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The 5-day weather forecast for Florida (Key Largo) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Key Largo weather forecast by day

Below are the detailed weather forecasts for Key Largo for the next 5 days.

Key Largo weather for Thursday 17th September 2026

Expect isolated thunderstorms in Key Largo, Florida with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 90% chance of some rain and a moderate breeze of 14 mph from the east.

86
°F maximum temperature
82
°F minimum temperature
isolated thunderstorms
5
hours of sunshine
7
UV index (High)
90
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
14
mph wind from E

Key Largo weather for Friday 18th September 2026

Expect isolated thunderstorms in Key Largo, Florida with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 74% chance of some rain and a gentle breeze of 9 mph from the east.

86
°F maximum temperature
82
°F minimum temperature
isolated thunderstorms
6
hours of sunshine
9
UV index (Very High)
74
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
9
mph wind from E

Key Largo weather for Saturday 19th September 2026

Expect isolated thunderstorms in Key Largo, Florida with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 77% chance of some rain and a light breeze of 7 mph from the east.

86
°F maximum temperature
81
°F minimum temperature
isolated thunderstorms
7
hours of sunshine
7
UV index (High)
77
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
7
mph wind from E

Key Largo weather for Sunday 20th September 2026

Expect isolated thunderstorms in Key Largo, Florida with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 84% chance of some rain and a light breeze of 7 mph from the south.

86
°F maximum temperature
81
°F minimum temperature
isolated thunderstorms
6
hours of sunshine
7
UV index (High)
84
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
7
mph wind from S

Key Largo weather for Monday 21st September 2026

Expect isolated thunderstorms in Key Largo, Florida with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 79% chance of some rain and a gentle breeze of 8 mph from the south.