Key West, FL 14-Day Forecast

Florida, United States 🇺🇸
86°
Light rain right now Today: high 87°, low 86°
Updated 5 hours ago

Key West weather for the next 14 days

Today

Sunny High 87° Low 86°
Precipitation
73% · 0.46 in
17 mph
11 - Very High
Sunrise / sunset
07:06 AM / 07:51 PM

Thursday, August 27

Patchy rain nearby High 86° Low 85°
Precipitation
70% · 0.19 in
Max wind
18 mph
Humidity
71%
UV index
11 - Extreme
Sunrise / sunset
07:06 AM / 07:50 PM

Friday, August 28

Patchy rain nearby High 86° Low 83°
Precipitation
79% · 0.42 in
Max wind
17 mph
Humidity
70%
UV index
7 - High
Sunrise / sunset
07:06 AM / 07:49 PM

Saturday, August 29

Patchy rain nearby High 87° Low 85°
Precipitation
37% · 0.03 in
Max wind
16 mph
Humidity
72%
UV index
8 - Very High
Sunrise / sunset
07:07 AM / 07:48 PM

Sunday, August 30

Patchy rain nearby High 87° Low 85°
Precipitation
57% · 0.05 in
Max wind
17 mph
Humidity
72%
UV index
8 - Very High
Sunrise / sunset
07:07 AM / 07:47 PM

Monday, August 31

Overcast High 86° Low 86°
Precipitation
36% · 0.01 in
Max wind
17 mph
Humidity
72%
UV index
8 - Very High
Sunrise / sunset
07:08 AM / 07:46 PM

Tuesday, September 1

Light rain shower High 87° Low 86°
Precipitation
73% · 0.18 in
Max wind
18 mph
Humidity
73%
UV index
8 - Very High
Sunrise / sunset
07:08 AM / 07:45 PM

Wednesday, September 2

Patchy rain nearby High 87° Low 86°
Precipitation
57% · 0.06 in
Max wind
20 mph
Humidity
71%
UV index
8 - Very High
Sunrise / sunset
07:08 AM / 07:44 PM

Thursday, September 3

Light rain shower High 86° Low 84°
Precipitation
77% · 0.36 in
Max wind
18 mph
Humidity
72%
UV index
7 - High
Sunrise / sunset
07:09 AM / 07:43 PM

Friday, September 4

Sunny High 86° Low 84°
Precipitation
10% · 0.0 in
Max wind
17 mph
Humidity
68%
UV index
7 - High
Sunrise / sunset
07:09 AM / 07:42 PM

Saturday, September 5

Sunny High 86° Low 84°
Precipitation
8% · 0.0 in
Max wind
6 mph
Humidity
68%
UV index
7 - High
Sunrise / sunset
07:09 AM / 07:41 PM

Sunday, September 6

Sunny High 86° Low 85°
Precipitation
4% · 0.0 in
Max wind
5 mph
Humidity
66%
UV index
8 - Very High
Sunrise / sunset
07:10 AM / 07:40 PM

Monday, September 7

Sunny High 87° Low 84°
Precipitation
57% · 0.06 in
Max wind
6 mph
Humidity
67%
UV index
8 - Very High
Sunrise / sunset
07:10 AM / 07:39 PM

Tuesday, September 8

Patchy rain nearby High 87° Low 85°
Precipitation
77% · 0.28 in
Max wind
20 mph
Humidity
72%
UV index
7 - High
Sunrise / sunset
07:10 AM / 07:38 PM

Key West 14-day outlook: the story

The warmest day of Key West's 14-day outlook is Monday, September 7 with a high near 87°F (30°C); the coolest night comes Friday, August 28, dipping to 83°F (28°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 87°F (30°C), right in line with the typical August high of 86°F (30°C).

Precipitation is most likely on Wednesday 26, Thursday 27, Friday 28, Sunday 30 and beyond; the wettest day looks like Wednesday, August 26 with about 0.46 in (11.7 mm) expected. For the weekend, expect Saturday 87°F (30°C) and patchy rain nearby / Sunday 87°F (30°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?
The forecast currently shows meaningful precipitation chances on 9 of the next 14 days, peaking around Wednesday, August 26.
What will be the warmest day in Key West over the next 14 days?
Monday, September 7, with a forecast high near 87°F (30°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