Marine Weather Net

Key Biscayne, FL Weather Forecast


Marine Forecast: Biscayne Bay


Key Biscayne, Florida

 Lat: 25.69N, Lon: 80.16W

Current Conditions Updated: 453 PM EDT THU MAR 19 2026

Mostly Cloudy
Temp: 74°F
  • Humidity:
  • 53%
  • Winds:
  • 14 MPH NE
  • Gusts:
  • 24 MPH
  • Barometer:
  • 29.99 in.
  • Dewpoint:
  • 56°F
  • Heat index:
  • 77°F

  • Sunrise:
  • 7:24 AM EDT
  • Sunset:
  • 7:30 PM EDT
  • Moonrise:
  • 7:39 AM EDT
  • Moonset:
  • 8:23 PM EDT

TONIGHT

CHANCE OF SHOWERS
Lo: 65°F
Precip: 40%

FRIDAY

MOSTLY SUNNY
Hi: 75°F
Lo: 61°F
Precip: 40%

SATURDAY

SUNNY

Hi: 79°F
Lo: 61°F

SUNDAY

SUNNY

Hi: 80°F
Lo: 65°F
Weather Forecast In Detail:
Forecast Issued: 222 PM EDT Thu Mar 19 2026

HIGH RIP CURRENT RISK IN EFFECT THROUGH SATURDAY EVENING
Tonight...Mostly cloudy this evening, then partly cloudy with a chance of showers after midnight. Lows in the mid 60s. North winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 40 percent.
Friday...Mostly sunny. A chance of showers in the morning. Highs in the mid 70s. North winds 15 to 20 mph. Chance of rain 40 percent.
Friday Night...Mostly clear. Lows in the lower 60s. North winds 15 to 20 mph.
Saturday...Sunny. Highs in the upper 70s. North winds 10 to 15 mph.
Saturday Night...Mostly clear. Lows in the lower 60s. Northeast winds 5 to 10 mph.
Sunday...Sunny. Highs around 80.
Sunday Night...Clear. Lows in the mid 60s. Highs around 80.
Monday...Clear. Lows in the mid 60s. Highs around 80.
Tuesday...Mostly clear. Highs in the lower 80s. Lows in the upper 60s.
Wednesday...Mostly clear. Highs in the lower 80s. Lows in the upper 60s.
Wednesday Night...Partly cloudy in the evening, then clearing. Lows in the upper 60s.
Thursday...Sunny. Highs around 80.
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