Key West weather live forecast

Today's maximum temperature in Key West is expected to be 31°C. Select a day from the live weather forecast for Key West, Florida, USA for more weather parameters.

Saturday
16th May
31

28

8

11
Sunday
17th May
31

28

7

11
Monday
18th May
31

28

7

10
Tuesday
19th May
31

28

8

10
Wednesday
20th May
31

28

8

11

5-day weather forecast updated at 04:00 on Saturday 16th May 2026 GMT

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

Key West weather forecast by day

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

Key West weather for Saturday 16th May 2026

Expect isolated thunderstorms in Key West, Florida with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 16% chance of some rain and a gentle breeze of 19 kph from the east.

31
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
11
UV index (Extreme)
16
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
19
kph wind from E

Key West weather for Sunday 17th May 2026

Expect isolated thunderstorms in Key West, Florida with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 47% chance of some rain and a moderate breeze of 23 kph from the east.

31
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
11
UV index (Extreme)
47
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
23
kph wind from E

Key West weather for Monday 18th May 2026

Expect isolated thunderstorms in Key West, Florida with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 44% chance of some rain and a moderate breeze of 23 kph from the east.

31
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
10
UV index (Very High)
44
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
23
kph wind from E

Key West weather for Tuesday 19th May 2026

Expect isolated thunderstorms in Key West, Florida with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 38% chance of some rain and a moderate breeze of 22 kph from the east.

31
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
10
UV index (Very High)
38
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
22
kph wind from E

Key West weather for Wednesday 20th May 2026

Expect isolated thunderstorms in Key West, Florida with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 46% chance of some rain and a gentle breeze of 19 kph from the east.