Marine Weather Net

Key Biscayne, FL Weather Forecast


Marine Forecast: Biscayne Bay


Key Biscayne, Florida

 Lat: 25.69N, Lon: 80.16W

Current Conditions Updated: 953 AM EST SAT JAN 17 2026

Mostly Cloudy
Temp: 71°F
  • Humidity:
  • 61%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.18 in.
  • Dewpoint:
  • 57°F
  • Heat index:
  • 76°F

  • Sunrise:
  • 7:07 AM EST
  • Sunset:
  • 5:51 PM EST
  • Moonrise:
  • 6:25 AM EST
  • Moonset:
  • 4:53 PM EST

TODAY

PARTLY SUNNY
Hi: 75°F
Lo: 65°F

SUNDAY

PARTLY SUNNY
Hi: 79°F
Lo: 51°F
Precip: 40%

MARTIN LUTHER KING JR DAY

MOSTLY SUNNY
Hi: 70°F
Lo: 69°F

THURSDAY

PARTLY SUNNY
Hi: 79°F
Lo: 69°F
Precip: 50%
Weather Forecast In Detail:
Forecast Issued: 142 AM EST Sat Jan 17 2026

Today...Partly sunny. Highs in the mid 70s. Northeast winds around 5 mph, becoming east this afternoon.
Tonight...Mostly cloudy. Lows in the mid 60s. Northeast winds around 5 mph, becoming northwest after midnight.
Sunday...Partly sunny with a 40 percent chance of showers. Highs in the upper 70s. West winds 10 to 15 mph.
Sunday Night...Mostly cloudy. Cooler with lows in the lower 50s. Northwest winds 15 to 20 mph.
Martin Luther King Jr Day...Mostly sunny. Highs around 70. North winds 15 to 20 mph.
Monday Night...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 50s.
Tuesday And Tuesday Night...Partly cloudy and breezy. Highs in the lower 70s. Lows in the mid 60s.
Wednesday And Wednesday Night...Mostly cloudy. Highs in the mid 70s. Lows in the upper 60s.
Thursday...Mostly cloudy in the morning, then becoming partly sunny. A 50 percent chance of showers. Highs in the upper 70s.
Thursday Night...Partly cloudy. A chance of showers in the evening. Lows in the upper 60s. Chance of rain 50 percent.
Friday...Mostly sunny. Highs in the upper 70s.
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