Key West weather live forecast

Today's maximum temperature in Key West is expected to be 25°C. Select a day from the live weather forecast for Key West, Florida, USA for more weather parameters.

Tuesday
17th Mar
25

20

0

4
Wednesday
18th Mar
24

20

2

4
Thursday
19th Mar
26

21

7

8
Friday
20th Mar
26

22

6

9
Saturday
21st Mar
26

23

11

9

5-day weather forecast updated at 04:00 on Tuesday 17th March 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 Tuesday 17th March 2026

Expect isolated thunderstorms in Key West, Florida with a maximum temperature of 25°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 33% chance of some rain and a fresh breeze of 32 kph from the north.

25
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
4
UV index (Moderate)
33
% chance of some rain
<30
mm of rainfall expected
25
°C wind chill
32
kph wind from N

Key West weather for Wednesday 18th March 2026

Expect mostly cloudy with light rain in Key West, Florida with a maximum temperature of 24°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 43% chance of some rain and a moderate breeze of 28 kph from the north.

24
°C maximum temperature
20
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
4
UV index (Moderate)
43
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
28
kph wind from N

Key West weather for Thursday 19th March 2026

Expect sunshine and showers in Key West, Florida with a maximum temperature of 26°C, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 80% chance of some rain and a fresh breeze of 29 kph from the north-east.

26
°C maximum temperature
21
°C minimum temperature
sunshine and showers
7
hours of sunshine
8
UV index (Very High)
80
% chance of some rain
<2
mm of rainfall expected
26
°C wind chill
29
kph wind from NE

Key West weather for Friday 20th March 2026

Expect sunshine and showers in Key West, Florida with a maximum temperature of 26°C, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 21% chance of some rain and a moderate breeze of 25 kph from the north.

26
°C maximum temperature
22
°C minimum temperature
sunshine and showers
6
hours of sunshine
9
UV index (Very High)
21
% chance of some rain
<2
mm of rainfall expected
26
°C wind chill
25
kph wind from N

Key West weather for Saturday 21st March 2026

Expect scattered clouds in Key West, Florida with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north-east.