Key West, FL 14-Day Forecast
Florida, United States 🇺🇸
86°
Patchy rain nearby right now
Today: high 86°, low 85°
Updated just now
Key West weather for the next 14 days
Wednesday, September 16
Patchy rain nearby High 87° Low 86°Precipitation
59%
· 0.08 in
Max wind
19 mph
Humidity
69%
UV index
10 - Very High
Sunrise / sunset
07:13 AM / 07:30 PM
Thursday, September 17
Patchy rain nearby High 86° Low 84°Precipitation
72%
· 0.24 in
Max wind
19 mph
Humidity
71%
UV index
10 - Very High
Sunrise / sunset
07:14 AM / 07:29 PM
Friday, September 18
Patchy rain nearby High 86° Low 84°Precipitation
74%
· 0.86 in
Max wind
18 mph
Humidity
67%
UV index
6 - Moderate
Sunrise / sunset
07:14 AM / 07:28 PM
Saturday, September 19
Partly Cloudy High 85° Low 84°Precipitation
57%
· 0.07 in
Max wind
15 mph
Humidity
69%
UV index
10 - Very High
Sunrise / sunset
07:14 AM / 07:27 PM
Sunday, September 20
Sunny High 85° Low 84°Precipitation
17%
· 0.0 in
Max wind
9 mph
Humidity
67%
UV index
7 - High
Sunrise / sunset
07:15 AM / 07:26 PM
Monday, September 21
Sunny High 85° Low 84°Precipitation
12%
· 0.0 in
Max wind
10 mph
Humidity
68%
UV index
7 - High
Sunrise / sunset
07:15 AM / 07:24 PM
Tuesday, September 22
Patchy rain nearby High 85° Low 84°Precipitation
78%
· 0.33 in
Max wind
6 mph
Humidity
69%
UV index
6 - High
Sunrise / sunset
07:15 AM / 07:23 PM
Wednesday, September 23
Overcast High 85° Low 83°Precipitation
81%
· 0.32 in
Max wind
12 mph
Humidity
72%
UV index
6 - High
Sunrise / sunset
07:16 AM / 07:22 PM
Thursday, September 24
Overcast High 85° Low 84°Precipitation
47%
· 0.02 in
Max wind
12 mph
Humidity
71%
UV index
6 - High
Sunrise / sunset
07:16 AM / 07:21 PM
Friday, September 25
Light rain shower High 85° Low 82°Precipitation
83%
· 0.39 in
Max wind
8 mph
Humidity
72%
UV index
6 - High
Sunrise / sunset
07:16 AM / 07:20 PM
Saturday, September 26
Light rain shower High 85° Low 82°Precipitation
85%
· 0.45 in
Max wind
24 mph
Humidity
75%
UV index
6 - High
Sunrise / sunset
07:17 AM / 07:19 PM
Sunday, September 27
Light rain shower High 85° Low 83°Precipitation
83%
· 0.37 in
Max wind
35 mph
Humidity
78%
UV index
6 - High
Sunrise / sunset
07:17 AM / 07:18 PM
Monday, September 28
Patchy rain nearby High 85° Low 83°Precipitation
83%
· 0.76 in
Max wind
34 mph
Humidity
77%
UV index
6 - High
Sunrise / sunset
07:18 AM / 07:17 PM
Key West 14-day outlook: the story
The warmest day of Key West's 14-day outlook is Wednesday, September 16 with a high near 87°F (30°C); the coolest night comes Saturday, September 26, dipping to 82°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 September high of 85°F (29°C).
Precipitation is most likely on Tuesday 15, Wednesday 16, Thursday 17, Friday 18 and beyond; the wettest day looks like Friday, September 18 with about 0.86 in (21.8 mm) expected. For the weekend, expect Saturday 85°F (30°C) and partly cloudy / Sunday 85°F (29°C) and sunny.
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 11 of the next 14 days, peaking around Friday, September 18.
What will be the warmest day in Key West over the next 14 days?
Wednesday, September 16, 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
| 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