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As of 02:20 EDT

Weather in Key Biscayne, FL

84°Current weather

Key Biscayne, Sunday, 9 August, 02:20

Partly cloudy. Feels like 92°. High 93°, low 82°.

Pressure30.06 inHg
Wind2 mph E
Humidity77%
Visibility6.2 mi
Dew point75°

10-day forecast for Key Biscayne, FL: 78° to 93°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.

92°
Best day: Monday, August 10
87° · 0.1 in
Worst day: Saturday, August 15

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 1092° / 78°0Mostly clear
MorningPartly cloudy81°feels 85°
AfternoonMostly clear92°feels 104°
EveningClear84°feels 92°
OvernightPartly cloudy81°feels 86°
92 °Mostly clear

Key Biscayne, Monday, 10 August

Mostly clear. High 92°, low 78°.

Pressure30.15 inHg
Wind11.2 mph E
Humidity67%
Visibility6.2 mi
Dew point74°
Tue, 1187° / 84°0Clear
MorningClear85°feels 91°
AfternoonClear87°feels 95°
EveningClear86°feels 93°
OvernightClear85°feels 94°
87 °Clear

Key Biscayne, Tuesday, 11 August

Clear. High 87°, low 84°.

Pressure30.12 inHg
Wind9.4 mph E
Humidity68%
Visibility6.2 mi
Dew point75°
Wed, 1286° / 84°0.02Light rain
MorningMostly clear84°feels 92°
AfternoonPartly cloudy86°feels 93°
EveningPartly cloudy86°feels 92°
OvernightClear85°feels 94°
86 °Light rain

Key Biscayne, Wednesday, 12 August

Light rain. High 86°, low 84°.

Pressure30.06 inHg
Wind7.6 mph SE
Humidity64%
Visibility6.2 mi
Dew point73°
Thu, 1387° / 84°0.05Light rain
MorningLight rain85°feels 93°
AfternoonLight rain86°feels 94°
EveningLight rain86°feels 93°
OvernightOvercast85°feels 90°
87 °Light rain

Key Biscayne, Thursday, 13 August

Light rain. High 87°, low 84°.

Pressure30.06 inHg
Wind13.1 mph SE
Humidity68%
Visibility—
Dew point74°
Fri, 1488° / 85°0Partly cloudy
MorningPartly cloudy85°feels 93°
AfternoonPartly cloudy87°feels 95°
EveningPartly cloudy86°feels 96°
OvernightPartly cloudy85°feels 95°
88 °Partly cloudy

Key Biscayne, Friday, 14 August

Partly cloudy. High 88°, low 85°.

Pressure30.12 inHg
Wind14.9 mph E
Humidity63%
Visibility—
Dew point73°
Sat, 1587° / 85°0.1Light rain
MorningLight rain85°feels 94°
AfternoonLight rain87°feels 94°
EveningLight rain85°feels 92°
OvernightLight rain85°feels 93°
87 °Light rain

Key Biscayne, Saturday, 15 August

Light rain. High 87°, low 85°.

Pressure30.15 inHg
Wind14.9 mph SE
Humidity63%
Visibility—
Dew point73°
Sun, 1686° / 84°0Overcast
MorningOvercast85°feels 91°
AfternoonOvercast86°feels 92°
EveningOvercast85°feels 92°
OvernightOvercast85°feels 91°
86 °Overcast

Key Biscayne, Sunday, 16 August

Overcast. High 86°, low 84°.

Pressure30.12 inHg
Wind13.2 mph E
Humidity61%
Visibility—
Dew point71°
Mon, 1786° / 84°0.04Light rain
MorningLight rain85°feels 91°
AfternoonLight rain86°feels 92°
EveningLight rain86°feels 92°
OvernightLight rain85°feels 90°
86 °Light rain

Key Biscayne, Monday, 17 August

Light rain. High 86°, low 84°.

Pressure30.09 inHg
Wind9.6 mph SE
Humidity66%
Visibility—
Dew point73°
Tue, 1886° / 84°0.04Light rain
MorningLight rain85°feels 91°
AfternoonLight rain86°feels 93°
EveningLight rain85°feels 92°
OvernightLight rain84°feels 91°
86 °Light rain

Key Biscayne, Tuesday, 18 August

Light rain. High 86°, low 84°.

Pressure30.06 inHg
Wind10.5 mph E
Humidity64%
Visibility—
Dew point72°

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 Biscayne, 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.