Marine Weather Net

Key Biscayne, FL Weather Forecast


Marine Forecast: Biscayne Bay


Key Biscayne, Florida

 Lat: 25.69N, Lon: 80.16W

Current Conditions Updated: 1053 AM EDT TUE OCT 6 2026

Mostly Cloudy
Temp: 87°F
  • Humidity:
  • 63%
  • Winds:
  • 6 MPH SSE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.93 in.
  • Dewpoint:
  • 73°F
  • Heat index:
  • 95°F

  • Sunrise:
  • 7:13 AM EDT
  • Sunset:
  • 7:01 PM EDT
  • Moonrise:
  • 3:15 AM EDT
  • Moonset:
  • 4:38 PM EDT

TODAY

MOSTLY SUNNY
Hi: 89°F
Lo: 77°F
Precip: 40%

WEDNESDAY

MOSTLY SUNNY
Hi: 89°F
Lo: 77°F
Precip: 50%

THURSDAY

MOSTLY SUNNY
Hi: 89°F
Lo: 79°F
Precip: 50%

FRIDAY

MOSTLY SUNNY
Hi: 89°F
Lo: 79°F
Precip: 40%
Weather Forecast In Detail:
Forecast Issued: 222 AM EDT Tue Oct 06 2026

Today...Mostly sunny. A chance of showers and thunderstorms this afternoon. Highs in the upper 80s. South winds 5 to 10 mph. Chance of rain 40 percent.
Tonight...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Humid with lows in the upper 70s. Southwest winds around 5 mph. Chance of rain 40 percent.
Wednesday...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 50 percent.
Wednesday Night...Partly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Humid with lows in the upper 70s. Southwest winds around 5 mph. Chance of rain 70 percent.
Thursday...Mostly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Humid with highs in the upper 80s. South winds 5 to 10 mph. Chance of rain 50 percent.
Thursday Night...Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the upper 70s. Chance of rain 50 percent.
Friday...Mostly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 40 percent.
Friday Night...Partly cloudy with a chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 50 percent.
Saturday...Showers likely with a chance of thunderstorms. Highs in the upper 80s. Chance of rain 70 percent.
Saturday Night...Partly cloudy with a chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 50 percent.
Sunday...Mostly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 30 percent.
Sunday Night...Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the upper 70s. Chance of rain 30 percent.
Columbus Day...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent.
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