Marine Weather Net

Key Biscayne, FL Weather Forecast


Marine Forecast: Biscayne Bay


Key Biscayne, Florida

 Lat: 25.69N, Lon: 80.16W

Current Conditions Updated: 1153 PM EST SUN NOV 9 2025

Mostly Clear
Temp: 77°F
  • Humidity:
  • 87%
  • Winds:
  • 6 MPH W
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.99 in.
  • Dewpoint:
  • 73°F
  • Heat index:
  • 78°F

  • Sunrise:
  • 6:33 AM EST
  • Sunset:
  • 5:33 PM EST
  • Moonrise:
  • 10:51 PM EST
  • Moonset:
  • 11:59 AM EST

TODAY

PARTLY SUNNY
Hi: 81°F
Lo: 55°F
Precip: 20%

VETERANS DAY

MOSTLY SUNNY
Hi: 69°F
Lo: 65°F

WEDNESDAY

PARTLY SUNNY
Hi: 75°F
Lo: 70°F

SUNDAY

MOSTLY SUNNY
Hi: 81°F
Weather Forecast In Detail:
Forecast Issued: 1201 AM EST Mon Nov 10 2025

Today...Partly sunny. A slight chance of showers this morning. Highs in the lower 80s. Temperature falling into the mid 70s this afternoon. Northwest winds 15 to 20 mph. Chance of rain 20 percent.
Tonight...Mostly cloudy in the evening, then becoming partly cloudy. Breezy and much cooler. Less humid with lows around 50. Northwest winds 15 to 25 mph with gusts up to 35 mph.
Veterans Day...Mostly sunny and breezy, cooler with highs in the upper 60s. North winds 15 to 25 mph.
Tuesday Night...Mostly cloudy and breezy. Not as cool. Near steady temperature in the mid 60s. North winds 20 to 25 mph, becoming northeast 10 to 15 mph after midnight.
Wednesday...Partly sunny. Highs in the mid 70s. Northeast winds 10 to 15 mph.
Wednesday Night And Thursday...Mostly cloudy. Lows in the upper 60s. Highs in the upper 70s.
Thursday Night...Partly cloudy. Lows in the upper 60s. Highs in the lower 80s.
Friday...Partly cloudy. Lows in the upper 60s. Highs in the lower 80s.
Saturday...Partly cloudy. Lows in the upper 60s. Highs in the lower 80s.
Saturday Night...Partly cloudy in the evening, then becoming mostly clear. Lows around 70.
Sunday...Mostly sunny. Highs in the lower 80s.
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