Marine Weather Net

Key Biscayne, FL Weather Forecast


Marine Forecast: Biscayne Bay


Key Biscayne, Florida

 Lat: 25.69N, Lon: 80.16W

Current Conditions Updated: 853 PM EDT WED APR 8 2026

Overcast
Temp: 71°F
  • Humidity:
  • 90%
  • Winds:
  • 14 MPH NNE
  • Gusts:
  • 26 MPH
  • Barometer:
  • 29.96 in.
  • Dewpoint:
  • 68°F
  • Heat index:
  • 71°F

  • Sunrise:
  • 7:03 AM EDT
  • Sunset:
  • 7:39 PM EDT
  • Moonrise:
  • 1:00 AM EDT
  • Moonset:
  • 11:20 AM EDT

TONIGHT

THUNDER STORMS
Lo: 70°F
Precip: 70%

THURSDAY

CHANCE OF T-STORM
Hi: 79°F
Lo: 71°F
Precip: 70%

FRIDAY

PARTLY SUNNY
Hi: 79°F
Lo: 71°F
Precip: 30%

TUESDAY

PARTLY SUNNY
Hi: 80°F
Lo: 71°F
Weather Forecast In Detail:
Forecast Issued: 711 PM EDT Wed Apr 08 2026

FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING ...HIGH RIP CURRENT RISK IN EFFECT THROUGH SATURDAY EVENING... ...WIND ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING...
Overnight...Showers likely. Thunderstorms likely, mainly this evening. Some thunderstorms May produce heavy rainfall this evening. Near steady temperature in the lower 70s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.
Thursday...Showers likely with a chance of thunderstorms. Highs in the upper 70s. East winds 15 to 20 mph. Chance of rain 70 percent.
Thursday Night...A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the lower 70s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 40 percent.
Friday...Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 70s. Northeast winds 15 to 20 mph. Chance of rain 30 percent.
Friday Night...Partly cloudy. A chance of showers in the evening. Lows in the lower 70s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 30 percent.
Saturday...Partly cloudy and breezy. Highs in the upper 70s. Lows in the lower 70s.
Sunday...Partly cloudy and breezy. Highs in the upper 70s. Lows in the lower 70s.
Monday...Partly cloudy and breezy. Highs in the upper 70s. Lows in the lower 70s.
Tuesday...Partly sunny. Highs around 80.
Tuesday Night And Wednesday...Partly cloudy. Lows in the lower 70s. Highs in the lower 80s.
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