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As of 17:30 EDT

Weather in Key Biscayne, FL

79°Current weather

Key Biscayne, Friday, 23 October, 17:30

Overcast. Feels like 80°. High 80°, low 68°.

Pressure29.97 inHg
Wind13.8 mph NE
Humidity71%
Visibility6.2 mi
Dew point68°

10-day forecast for Key Biscayne, FL: 68° to 83°, with precipitation expected on 9 days. The table below breaks each day into morning, afternoon, evening and overnight.

81°
Best day: Sunday, October 25
78° · 0.74 in
Worst day: Monday, October 26

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

Sat, 2482° / 69°0.04Light rain
MorningOvercast71°feels 72°
AfternoonMostly clear80°feels 80°
EveningClear76°feels 76°
OvernightOvercast69°feels 71°
82 °Light rain

Key Biscayne, Saturday, 24 October

Light rain. High 82°, low 69°.

Pressure30.03 inHg
Wind10.9 mph NE
Humidity59%
Visibility6.2 mi
Dew point65°
Sun, 2581° / 68°0.01Light rain
MorningClear69°feels 69°
AfternoonLight rain81°feels 84°
EveningMostly clear75°feels 76°
OvernightClear69°feels 70°
81 °Light rain

Key Biscayne, Sunday, 25 October

Light rain. High 81°, low 68°.

Pressure29.97 inHg
Wind7.4 mph N
Humidity74%
Visibility6.2 mi
Dew point70°
Mon, 2678° / 72°0.74Rain
MorningLight rain73°feels 74°
AfternoonRain78°feels 79°
EveningLight rain75°feels 76°
OvernightPartly cloudy72°feels 74°
78 °Rain

Key Biscayne, Monday, 26 October

Rain. High 78°, low 72°.

Pressure29.94 inHg
Wind11.2 mph NE
Humidity77%
Visibility2.7 mi
Dew point70°
Tue, 2780° / 73°0.38Rain
MorningPartly cloudy74°feels 75°
AfternoonRain80°feels 80°
EveningRain75°feels 76°
OvernightLight rain75°feels 76°
80 °Rain

Key Biscayne, Tuesday, 27 October

Rain. High 80°, low 73°.

Pressure29.91 inHg
Wind12.4 mph N
Humidity75%
Visibility3.3 mi
Dew point71°
Wed, 2883° / 73°0.13Light rain
MorningLight rain77°feels 80°
AfternoonLight rain83°feels 88°
EveningLight rain78°feels 79°
OvernightLight rain75°feels 77°
83 °Light rain

Key Biscayne, Wednesday, 28 October

Light rain. High 83°, low 73°.

Pressure29.88 inHg
Wind9.1 mph NE
Humidity71%
Visibility—
Dew point72°
Thu, 2981° / 75°0.07Light rain
MorningLight rain78°feels 80°
AfternoonLight rain80°feels 83°
EveningLight rain79°feels 79°
OvernightLight rain79°feels 79°
81 °Light rain

Key Biscayne, Thursday, 29 October

Light rain. High 81°, low 75°.

Pressure29.97 inHg
Wind20.2 mph NE
Humidity72%
Visibility—
Dew point70°
Fri, 3081° / 78°0.19Light rain
MorningLight rain79°feels 81°
AfternoonLight rain81°feels 83°
EveningLight rain79°feels 79°
OvernightLight rain78°feels 79°
81 °Light rain

Key Biscayne, Friday, 30 October

Light rain. High 81°, low 78°.

Pressure29.97 inHg
Wind19.2 mph NE
Humidity66%
Visibility—
Dew point68°
Sat, 3181° / 78°0.1Light rain
MorningLight rain80°feels 80°
AfternoonLight rain81°feels 83°
EveningLight rain79°feels 79°
OvernightLight rain79°feels 79°
81 °Light rain

Key Biscayne, Saturday, 31 October

Light rain. High 81°, low 78°.

Pressure30.03 inHg
Wind17.1 mph NE
Humidity64%
Visibility—
Dew point67°
Sun, 0180° / 78°0.05Light rain
MorningLight rain79°feels 80°
AfternoonLight rain80°feels 82°
EveningLight rain79°feels 79°
OvernightLight rain79°feels 79°
80 °Light rain

Key Biscayne, Sunday, 1 November

Light rain. High 80°, low 78°.

Pressure30.06 inHg
Wind18.2 mph NE
Humidity68%
Visibility—
Dew point68°

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.