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
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
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| 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