Duck Key weather live forecast

Today's maximum temperature in Duck Key is expected to be 29°C. Select a day from the live weather forecast for Duck Key, Florida, USA for more weather parameters.

Wednesday
20th May
29

26

10

UV10
Thursday
21st May
30

27

9

UV10
Friday
22nd May
30

27

7

UV11
Saturday
23rd May
30

27

7

UV10
Sunday
24th May
30

27

6

UV11

5-day weather forecast updated at 04:02 on Wednesday 20th May 2026 GMT

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

Duck Key weather forecast by day

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

Duck Key weather for Wednesday 20th May 2026

Expect scattered clouds in Duck Key, Florida with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the east.

29
°C maximum temperature
26
°C minimum temperature
scattered clouds
10
hours of sunshine
UV10
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
26
kph wind from E

Duck Key weather for Thursday 21st May 2026

Expect broken clouds in Duck Key, Florida with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the east.

30
°C maximum temperature
27
°C minimum temperature
broken clouds
9
hours of sunshine
UV10
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
24
kph wind from E

Duck Key weather for Friday 22nd May 2026

Expect broken clouds in Duck Key, Florida with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the east.

30
°C maximum temperature
27
°C minimum temperature
broken clouds
7
hours of sunshine
UV11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
22
kph wind from E

Duck Key weather for Saturday 23rd May 2026

Expect isolated thunderstorms in Duck Key, Florida with a maximum temperature of 30°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 58% chance of some rain and a moderate breeze of 25 kph from the east.

30
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
UV10
UV index (Very High)
58
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
25
kph wind from E

Duck Key weather for Sunday 24th May 2026

Expect isolated thunderstorms in Duck Key, Florida with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 52% chance of some rain and a fresh breeze of 30 kph from the east.