10-day forecast for Key West, FL: 84° to 87°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
87°
Best day: Monday, August 10
86° · 0.24 in
Worst day: Monday, August 17
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1087° / 85°0
Morning85°feels 92°
Afternoon86°feels 95°
Evening86°feels 97°
Overnight86°feels 96°
87 °
Key West, Monday, 10 August
Partly cloudy. High 87°, low 85°.
Pressure30.12 inHg
Wind16.2 mph SE
Humidity68%
Visibility6.2 mi
Dew point74°
Tue, 1187° / 85°0
Morning86°feels 93°
Afternoon86°feels 94°
Evening86°feels 96°
Overnight86°feels 98°
87 °
Key West, Tuesday, 11 August
Clear. High 87°, low 85°.
Pressure30.09 inHg
Wind14.7 mph E
Humidity69%
Visibility6.2 mi
Dew point74°
Wed, 1287° / 85°0
Morning86°feels 94°
Afternoon87°feels 95°
Evening86°feels 93°
Overnight86°feels 96°
87 °
Key West, Wednesday, 12 August
Light rain. High 87°, low 85°.
Pressure30.06 inHg
Wind9.8 mph E
Humidity68%
Visibility6.2 mi
Dew point74°
Thu, 1386° / 85°0
Morning86°feels 93°
Afternoon86°feels 93°
Evening86°feels 94°
Overnight85°feels 92°
86 °
Key West, Thursday, 13 August
Overcast. High 86°, low 85°.
Pressure30.06 inHg
Wind12.7 mph E
Humidity65%
Visibility—
Dew point73°
Fri, 1487° / 85°0
Morning86°feels 94°
Afternoon86°feels 96°
Evening86°feels 96°
Overnight86°feels 96°
87 °
Key West, Friday, 14 August
Partly cloudy. High 87°, low 85°.
Pressure30.12 inHg
Wind16.8 mph E
Humidity71%
Visibility—
Dew point76°
Sat, 1586° / 85°0.15
Morning86°feels 96°
Afternoon86°feels 94°
Evening86°feels 96°
Overnight86°feels 97°
86 °
Key West, Saturday, 15 August
Rain. High 86°, low 85°.
Pressure30.12 inHg
Wind18.1 mph E
Humidity67%
Visibility—
Dew point74°
Sun, 1686° / 85°0.02
Morning86°feels 93°
Afternoon86°feels 92°
Evening85°feels 92°
Overnight85°feels 93°
86 °
Key West, Sunday, 16 August
Light rain. High 86°, low 85°.
Pressure30.09 inHg
Wind18 mph E
Humidity64%
Visibility—
Dew point72°
Mon, 1786° / 85°0.24
Morning85°feels 90°
Afternoon85°feels 91°
Evening85°feels 91°
Overnight85°feels 92°
86 °
Key West, Monday, 17 August
Rain. High 86°, low 85°.
Pressure30.03 inHg
Wind8.9 mph E
Humidity63%
Visibility—
Dew point71°
Tue, 1885° / 84°0.12
Morning85°feels 92°
Afternoon85°feels 93°
Evening85°feels 92°
Overnight85°feels 92°
85 °
Key West, Tuesday, 18 August
Light rain. High 85°, low 84°.
Pressure30.00 inHg
Wind8.5 mph S
Humidity71%
Visibility—
Dew point74°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Key West, FL around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.