Marine Weather Net

Grassy Key, FL Weather Forecast




Grassy Key, Florida

 Lat: 24.72N, Lon: 81.05W

Current Conditions Updated: 853 PM EDT THU JUL 10 2025

Clear


Temp: 85°F
  • Humidity:
  • 74%
  • Winds:
  • 8 MPH E
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.07 in.
  • Dewpoint:
  • 76°F
  • Heat index:
  • 94°F

  • Sunrise:
  • 6:40 AM EDT
  • Sunset:
  • 8:15 PM EDT
  • Moonrise:
  • 8:34 PM EDT
  • Moonset:
  • 6:13 AM EDT

TONIGHT

CHANCE OF T-STORM
Lo: 81°F
Precip: 40%

FRIDAY

CHANCE OF T-STORM
Hi: 89°F
Lo: 81°F
Precip: 40%

SUNDAY

MOSTLY SUNNY
Hi: 89°F
Lo: 81°F
Precip: 30%

TUESDAY

PARTLY SUNNY
Hi: 89°F
Lo: 81°F
Precip: 40%
Weather Forecast In Detail:
Forecast Issued: 359 PM EDT Thu Jul 10 2025

Tonight...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. East to southeast winds 5 to 10 mph, increasing to near 10 mph. Chance of rain 40 percent.
Friday...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Highs in the upper 80s. East to southeast winds near 10 mph. Chance of rain 40 percent.
Friday Night...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the lower 80s. East to southeast winds near 10 mph. Chance of rain 40 percent.
Saturday And Saturday Night...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Highs in the upper 80s. Lows in the lower 80s. East to southeast winds 5 to 10 mph. Chance of rain 30 percent.
Sunday...Mostly sunny with a chance of showers and a slight chance of thunderstorms. Highs in the upper 80s. Chance of rain 30 percent.
Sunday Night...Mostly clear with a chance of showers and a slight chance of thunderstorms. Lows in the lower 80s. Chance of rain 30 percent.
Monday And Monday Night...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Highs in the upper 80s. Lows in the lower 80s. Chance of rain 30 percent.
Tuesday...Partly sunny with a chance of showers and a slight chance of thunderstorms. Highs in the upper 80s. Chance of rain 40 percent.
Tuesday Night...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Lows in the lower 80s. Chance of rain 40 percent.
Wednesday And Wednesday Night...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Highs in the upper 80s. Lows in the lower 80s. Chance of rain 30 percent.
Thursday...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Highs in the upper 80s. Chance of rain 40 percent.
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