Key West, FL 14-Day Forecast

Florida, United States 🇺🇸
86°
Clear right now Today: high 90°, low 85°
Updated 4 hours ago

Key West weather for the next 14 days

Today

Sunny High 90° Low 85°
Precipitation
7% · 0.0 in
14 mph
10 - Very High
Sunrise / sunset
07:02 AM / 07:59 PM

Tuesday, August 18

Sunny High 86° Low 84°
Precipitation
5% · 0.0 in
Max wind
11 mph
Humidity
68%
UV index
11 - Very High
Sunrise / sunset
07:03 AM / 07:58 PM

Wednesday, August 19

Sunny High 85° Low 84°
Precipitation
5% · 0.0 in
Max wind
11 mph
Humidity
65%
UV index
11 - Extreme
Sunrise / sunset
07:03 AM / 07:58 PM

Thursday, August 20

Sunny High 85° Low 83°
Precipitation
4% · 0.0 in
Max wind
8 mph
Humidity
65%
UV index
11 - Very High
Sunrise / sunset
07:03 AM / 07:57 PM

Friday, August 21

Sunny High 84° Low 83°
Precipitation
5% · 0.0 in
Max wind
8 mph
Humidity
68%
UV index
11 - Very High
Sunrise / sunset
07:04 AM / 07:56 PM

Saturday, August 22

Sunny High 85° Low 83°
Precipitation
6% · 0.0 in
Max wind
12 mph
Humidity
69%
UV index
7 - High
Sunrise / sunset
07:04 AM / 07:55 PM

Sunday, August 23

Patchy rain nearby High 85° Low 83°
Precipitation
17% · 0.0 in
Max wind
8 mph
Humidity
73%
UV index
7 - High
Sunrise / sunset
07:05 AM / 07:54 PM

Monday, August 24

Sunny High 85° Low 84°
Precipitation
10% · 0.0 in
Max wind
14 mph
Humidity
72%
UV index
7 - High
Sunrise / sunset
07:05 AM / 07:53 PM

Tuesday, August 25

Patchy rain nearby High 85° Low 84°
Precipitation
24% · 0.01 in
Max wind
15 mph
Humidity
74%
UV index
7 - High
Sunrise / sunset
07:05 AM / 07:52 PM

Wednesday, August 26

Sunny High 85° Low 84°
Precipitation
11% · 0.0 in
Max wind
13 mph
Humidity
73%
UV index
7 - High
Sunrise / sunset
07:06 AM / 07:51 PM

Thursday, August 27

Sunny High 85° Low 84°
Precipitation
10% · 0.0 in
Max wind
9 mph
Humidity
73%
UV index
7 - High
Sunrise / sunset
07:06 AM / 07:50 PM

Friday, August 28

Sunny High 85° Low 84°
Precipitation
8% · 0.0 in
Max wind
12 mph
Humidity
72%
UV index
7 - High
Sunrise / sunset
07:06 AM / 07:49 PM

Saturday, August 29

Sunny High 85° Low 84°
Precipitation
11% · 0.0 in
Max wind
8 mph
Humidity
72%
UV index
7 - High
Sunrise / sunset
07:07 AM / 07:48 PM

Sunday, August 30

Sunny High 85° Low 84°
Precipitation
10% · 0.0 in
Max wind
10 mph
Humidity
72%
UV index
7 - High
Sunrise / sunset
07:07 AM / 07:47 PM

Key West 14-day outlook: the story

The warmest day of Key West's 14-day outlook is Monday, August 17 with a high near 90°F (32°C); the coolest night comes Friday, August 21, dipping to 83°F (28°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 86°F (30°C), right in line with the typical August high of 86°F (30°C).

No day in the outlook currently carries a strong precipitation signal. For the weekend, expect Saturday 85°F (29°C) and sunny / Sunday 85°F (29°C) and patchy rain nearby.

For typical conditions month by month, see the Key West climate & average temperatures guide.

Key West forecast questions

Will it rain in Key West this week?
No day in the current 14-day outlook shows a strong rain signal for Key West.
What will be the warmest day in Key West over the next 14 days?
Monday, August 17, with a forecast high near 90°F (32°C).
How accurate is a 14-day forecast for Key West?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.

Average temperatures in Key West by month

Monthly averages for Key West based on 2015–2024 weather data.
MonthHighLow Rain daysPrecipitation SunshineHumidity
January 73° 69° 8 1.9 in 9.4 h/day 78%
February 74° 70° 6 1.4 in 10.3 h/day 79%
March 76° 73° 4 1.5 in 11.0 h/day 76%
April 78° 75° 6 1.6 in 12.1 h/day 76%
May 81° 78° 11 3.6 in 12.1 h/day 76%
June 83° 80° 16 5.5 in 11.3 h/day 79%
July 85° 82° 15 3.6 in 12.2 h/day 77%
August 86° 82° 18 5.1 in 11.5 h/day 77%
September 85° 81° 19 6.6 in 10.5 h/day 78%
October 82° 79° 16 5.0 in 10.0 h/day 77%
November 79° 76° 8 3.0 in 9.7 h/day 77%
December 75° 72° 7 2.6 in 9.3 h/day 80%
14-day forecasts nearby