Grassy Key, FL Weather Forecast & Current Conditions

Feedback E-mail the Weather

Quick Clicks

Weather World

Grassy Key, FL Weather Maps

°F °C°F °C
Grassy Key Weather Map
UTC Time: 10/3/2026, 19:43
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Grassy Key, FL Regional Weather

Expires:202610032000;;478770
ASUS42 KTBW 031913
RWRFL 
FLORIDA REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
300 PM EDT SAT OCT 03 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.


FLZ066-069-070-075>078-162-262-165-265-032000-
SOUTHWEST FLORIDA AND KEYS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PUNTA GORDA    PTSUNNY   92  75  57 SE7       29.99F HX 103           
FT MYERS       PTSUNNY   91  76  61 SE7       29.96F HX 103           
SOUTHWEST INTL PTSUNNY   91  73  55 S6        29.97F HX  99           
NAPLES         PTSUNNY   92  74  55 VRB7      29.96F HX 101           
MARCO ISLAND   MOSUNNY   92  77  61 S9        29.97F HX 105           
MARATHON       PTSUNNY   88  79  74 E10       29.96F HX 103           
KEY WEST NAS   PTSUNNY   87  78  74 SE14      29.96F HX 100           
KEY WEST INTL  PTSUNNY   87  79  76 E12       29.96F HX 101           

STATION/POSITION SKY/WX   TEMP    WIND        PRES    WAVE   SWELL
                          AIR SEA DIR/SP/G            HT/PER HT/PER
                          (F)     (DEG/KT/KT) (MB)    (FT/S) (FT/S)
NAPLES           NOT AVBL
DRY TORTUGAS     NOT AVBL
SAND KEY                   85                 1014.5F
SOMBRERO KEY               87     110/ 11/ 13 1014.8F
LONG KEY                   85                 1015.1R

$$

SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility
WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Grassy Key, FL

Today
Thunderstorms
88°/ 82° 31°/ 28°
30%
Sunday
Thunderstorms
88°/ 82° 31°/ 28°
20%
Monday
Thunderstorms
88°/ 80° 31°/ 27°
20%
Tuesday
Thunderstorms
88°/ 78° 31°/ 26°
30%
Wednesday
Thunderstorms
88°/ 78° 31°/ 26°
50%
Thu Night
Thunderstorms
78°26°
30%
Friday
Thunderstorms
88°31°
30%

Day: Partly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. East winds near 10 mph. Chance of rain 30 percent.

Night: Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. East winds near 10 mph. Chance of rain 30 percent.

Key Largo, FL

Today
Thunderstorms
88°/ 82° 31°/ 28°
30%
Sunday
Thunderstorms
88°/ 82° 31°/ 28°
20%
Monday
Thunderstorms
88°/ 80° 31°/ 27°
20%
Tuesday
Thunderstorms
88°/ 78° 31°/ 26°
30%
Wednesday
Thunderstorms
88°/ 78° 31°/ 26°
50%
Thu Night
Thunderstorms
78°26°
30%
Friday
Thunderstorms
88°31°
30%

Day: Partly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. East winds near 10 mph. Chance of rain 30 percent.

Night: Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 80s. East winds near 10 mph. Chance of rain 30 percent.

Northwest Cape Sable, FL

Tonight
Mostly Cloudy
78°26°
0%
Sunday
Thunderstorms
92°/ 75° 33°/ 24°
20%
Monday
Thunderstorms
88°/ 75° 31°/ 24°
50%
Tuesday
Thunderstorms
88°/ 75° 31°/ 24°
50%
Wednesday
Thunderstorms
88°/ 75° 31°/ 24°
70%
Thursday
Thunderstorms
88°/ 75° 31°/ 24°
70%
Friday
Thunderstorms
88°/ 75° 31°/ 24°
50%
Saturday
Thunderstorms
88°31°
50%

Night: Mostly cloudy. Lows in the upper 70s. East winds 5 to 10 mph with gusts up to 20 mph.

Fortymile Bend, FL

Tonight
Mostly Cloudy
78°26°
0%
Sunday
Thunderstorms
92°/ 75° 33°/ 24°
20%
Monday
Thunderstorms
92°/ 75° 33°/ 24°
70%
Tuesday
Thunderstorms
92°/ 75° 33°/ 24°
70%
Wednesday
Thunderstorms
90°/ 75° 32°/ 24°
70%
Thursday
Thunderstorms
88°/ 75° 31°/ 24°
80%
Friday
Thunderstorms
90°/ 75° 32°/ 24°
50%
Saturday
Thunderstorms
90°32°
50%

Night: Mostly cloudy this evening, then becoming partly cloudy. Lows in the upper 70s. East winds 5 to 10 mph. Gusts up to 20 mph this evening.

Hialeah, FL

Tonight
Mostly Cloudy
78°26°
0%
Sunday
Thunderstorms
90°/ 78° 32°/ 26°
20%
Monday
Thunderstorms
90°/ 78° 32°/ 26°
50%
Tuesday
Thunderstorms
90°/ 75° 32°/ 24°
70%
Wednesday
Thunderstorms
88°/ 75° 31°/ 24°
70%
Thursday
Thunderstorms
88°/ 75° 31°/ 24°
80%
Friday
Thunderstorms
88°/ 78° 31°/ 26°
50%
Saturday
Thunderstorms
88°31°
40%

Night: Mostly cloudy. Lows in the upper 70s. East winds 5 to 10 mph. Gusts up to 20 mph this evening.

Miami, FL

Tonight
Thunderstorms
80°27°
20%
Sunday
Thunderstorms
88°/ 78° 31°/ 26°
20%
Monday
Thunderstorms
88°/ 78° 31°/ 26°
40%
Tuesday
Thunderstorms
88°/ 78° 31°/ 26°
50%
Wednesday
Thunderstorms
88°/ 78° 31°/ 26°
70%
Thursday
Thunderstorms
88°/ 78° 31°/ 26°
70%
Friday
Thunderstorms
88°/ 78° 31°/ 26°
50%
Saturday
Thunderstorms
88°31°
40%

Night: Mostly cloudy. A slight chance of showers and thunderstorms this evening. Lows around 80. East winds 10 to 15 mph with gusts up to 20 mph. Chance of rain 20 percent.

Bonita Shores, FL

Tonight
Thunderstorms
75°24°
50%
Sunday
Thunderstorms
92°/ 75° 33°/ 24°
50%
Monday
Thunderstorms
90°/ 75° 32°/ 24°
50%
Tuesday
Thunderstorms
88°/ 75° 31°/ 24°
60%
Wednesday
Thunderstorms
88°/ 75° 31°/ 24°
70%
Thursday
Thunderstorms
88°/ 75° 31°/ 24°
70%
Friday
Thunderstorms
88°/ 75° 31°/ 24°
50%
Saturday
Thunderstorms
88°31°
60%

Night: Mostly cloudy. A chance of showers and thunderstorms this evening. Lows in the mid 70s. East winds 5 to 10 mph. Chance of rain 50 percent.

Golden Gate, FL

Tonight
Thunderstorms
75°24°
50%
Sunday
Thunderstorms
92°/ 75° 33°/ 24°
50%
Monday
Thunderstorms
92°/ 75° 33°/ 24°
70%
Tuesday
Thunderstorms
92°/ 72° 33°/ 22°
70%
Wednesday
Thunderstorms
90°/ 72° 32°/ 22°
80%
Thursday
Thunderstorms
88°/ 72° 31°/ 22°
80%
Friday
Thunderstorms
90°/ 75° 32°/ 24°
70%
Saturday
Thunderstorms
92°33°
60%

Night: Mostly cloudy. A chance of showers and thunderstorms this evening. Lows in the mid 70s. East winds 5 to 10 mph. Gusts up to 20 mph this evening. Chance of rain 50 percent.

Hollywood, FL

Tonight
Thunderstorms
78°26°
20%
Sunday
Thunderstorms
90°/ 78° 32°/ 26°
20%
Monday
Thunderstorms
90°/ 78° 32°/ 26°
50%
Tuesday
Thunderstorms
90°/ 75° 32°/ 24°
70%
Wednesday
Thunderstorms
88°/ 75° 31°/ 24°
80%
Thursday
Thunderstorms
88°/ 75° 31°/ 24°
80%
Friday
Thunderstorms
88°/ 78° 31°/ 26°
50%
Saturday
Thunderstorms
88°31°
50%

Night: Mostly cloudy. A slight chance of showers and thunderstorms this evening. Lows in the upper 70s. East winds 5 to 10 mph. Gusts up to 20 mph this evening. Chance of rain 20 percent.

Fort Lauderdale, FL

Tonight
Thunderstorms
82°28°
20%
Sunday
Thunderstorms
88°/ 78° 31°/ 26°
20%
Monday
Thunderstorms
88°/ 78° 31°/ 26°
50%
Tuesday
Thunderstorms
88°/ 75° 31°/ 24°
70%
Wednesday
Thunderstorms
88°/ 75° 31°/ 24°
80%
Thursday
Thunderstorms
88°/ 78° 31°/ 26°
70%
Friday
Thunderstorms
88°/ 78° 31°/ 26°
50%
Saturday
Thunderstorms
88°31°
50%

Night: Mostly cloudy. A slight chance of showers and thunderstorms this evening. Near steady temperature in the lower 80s. East winds 15 to 20 mph. Chance of rain 20 percent.

Miccosukee Indian Reservation, FL

Tonight
Thunderstorms
78°26°
20%
Sunday
Thunderstorms
92°/ 75° 33°/ 24°
20%
Monday
Thunderstorms
92°/ 75° 33°/ 24°
70%
Tuesday
Thunderstorms
92°/ 75° 33°/ 24°
80%
Wednesday
Thunderstorms
90°/ 75° 32°/ 24°
90%
Thursday
Thunderstorms
88°/ 75° 31°/ 24°
80%
Friday
Thunderstorms
90°/ 75° 32°/ 24°
70%
Saturday
Thunderstorms
90°32°
50%

Night: Mostly cloudy. A slight chance of showers and thunderstorms this evening. Lows in the upper 70s. East winds 5 to 10 mph. Gusts up to 20 mph this evening. Chance of rain 20 percent.

Cape Coral, FL

Tonight
Thunderstorms
75°24°
50%
Sunday
Thunderstorms
90°/ 75° 32°/ 24°
50%
Monday
Thunderstorms
88°/ 75° 31°/ 24°
50%
Tue-Tue Night
Thunderstorms
88°31°
70%
Wednesday
Thunderstorms
85°29°
80%
Thu Night
Thunderstorms
85°29°
80%
Fri-Fri Night
Thunderstorms
88°31°
70%
Saturday
Thunderstorms
88°31°
60%

Night: Mostly cloudy with scattered showers and thunderstorms this evening, then partly cloudy after midnight. Lows in the mid 70s. East winds 5 to 10 mph. Chance of rain 50 percent.

Felda, FL

Tonight
Thunderstorms
75°24°
50%
Sunday
Thunderstorms
92°/ 72° 33°/ 22°
50%
Monday
Thunderstorms
92°/ 72° 33°/ 22°
70%
Tuesday
Thunderstorms
90°/ 72° 32°/ 22°
90%
Wednesday
Thunderstorms
88°/ 72° 31°/ 22°
90%
Thursday
Thunderstorms
88°/ 72° 31°/ 22°
80%
Friday
Thunderstorms
88°/ 72° 31°/ 22°
70%
Saturday
Thunderstorms
88°31°
60%

Night: Mostly cloudy. A chance of showers and thunderstorms this evening. Lows in the mid 70s. East winds 5 to 10 mph. Gusts up to 20 mph this evening. Chance of rain 50 percent.

West Palm Beach, FL

Tonight
Thunderstorms
78°26°
30%
Sunday
Thunderstorms
88°/ 78° 31°/ 26°
30%
Monday
Thunderstorms
88°/ 78° 31°/ 26°
50%
Tuesday
Thunderstorms
88°/ 75° 31°/ 24°
80%
Wednesday
Thunderstorms
88°/ 75° 31°/ 24°
80%
Thursday
Thunderstorms
88°/ 75° 31°/ 24°
80%
Friday
Thunderstorms
88°/ 78° 31°/ 26°
60%
Saturday
Thunderstorms
88°31°
50%

Night: Mostly cloudy. A chance of showers and thunderstorms this evening, then a slight chance of showers after midnight. Lows in the upper 70s. East winds 10 to 15 mph with gusts up to 20 mph. Chance of rain 30 percent.

Fort Myers, FL

Tonight
Thunderstorms
75°24°
50%
Sunday
Thunderstorms
92°/ 75° 33°/ 24°
60%
Monday
Thunderstorms
92°/ 75° 33°/ 24°
50%
Tuesday
Thunderstorms
88°/ 75° 31°/ 24°
70%
Wednesday
Thunderstorms
88°31°
80%
Thursday
Thunderstorms
88°/ 72° 31°/ 22°
80%
Fri-Fri Night
Thunderstorms
88°31°
70%
Saturday
Thunderstorms
88°31°
60%

Night: Mostly cloudy with scattered showers and thunderstorms this evening, then partly cloudy after midnight. Lows in the mid 70s. East winds 5 to 10 mph. Chance of rain 50 percent.

Lion Country Safari Park, FL

Tonight
Thunderstorms
75°24°
30%
Sunday
Thunderstorms
92°/ 75° 33°/ 24°
20%
Monday
Thunderstorms
92°/ 75° 33°/ 24°
70%
Tuesday
Thunderstorms
90°/ 72° 32°/ 22°
90%
Wednesday
Thunderstorms
88°/ 72° 31°/ 22°
90%
Thursday
Thunderstorms
88°/ 72° 31°/ 22°
80%
Friday
Thunderstorms
88°/ 75° 31°/ 24°
70%
Saturday
Thunderstorms
88°31°
60%

Night: Mostly cloudy. A chance of showers and thunderstorms this evening. Lows in the mid 70s. East winds 5 to 10 mph. Gusts up to 20 mph this evening. Chance of rain 30 percent.

Boynton Beach, FL

Tonight
Thunderstorms
78°26°
30%
Sunday
Thunderstorms
90°/ 78° 32°/ 26°
30%
Monday
Thunderstorms
90°/ 75° 32°/ 24°
60%
Tuesday
Thunderstorms
90°/ 75° 32°/ 24°
80%
Wednesday
Thunderstorms
88°/ 75° 31°/ 24°
80%
Thursday
Thunderstorms
88°/ 75° 31°/ 24°
80%
Friday
Thunderstorms
88°/ 75° 31°/ 24°
60%
Saturday
Thunderstorms
88°31°
50%

Night: Mostly cloudy. A chance of showers and thunderstorms this evening, then a slight chance of showers after midnight. Lows in the upper 70s. East winds 5 to 10 mph. Chance of rain 30 percent.

Muse, FL

Tonight
Thunderstorms
75°24°
50%
Sunday
Thunderstorms
92°/ 72° 33°/ 22°
50%
Monday
Thunderstorms
92°/ 72° 33°/ 22°
70%
Tuesday
Thunderstorms
88°/ 72° 31°/ 22°
90%
Wednesday
Thunderstorms
88°/ 72° 31°/ 22°
90%
Thursday
Thunderstorms
88°/ 72° 31°/ 22°
80%
Friday
Thunderstorms
88°/ 72° 31°/ 22°
70%
Saturday
Thunderstorms
88°31°
70%

Night: Mostly cloudy. A chance of showers and thunderstorms this evening. Lows in the mid 70s. East winds 5 to 10 mph. Chance of rain 50 percent.

Port Charlotte, FL

Tonight
Thunderstorms
75°24°
50%
Sunday
Thunderstorms
90°/ 75° 32°/ 24°
50%
Monday
Thunderstorms
88°/ 75° 31°/ 24°
50%
Tue-Tue Night
Thunderstorms
88°31°
90%
Wednesday
Thunderstorms
85°29°
80%
Thu Night
Thunderstorms
85°29°
80%
Fri-Fri Night
Thunderstorms
88°31°
70%
Saturday
Thunderstorms
88°31°
60%

Night: Mostly cloudy with scattered showers and thunderstorms this evening, then partly cloudy after midnight. Lows in the mid 70s. East winds 5 to 10 mph. Chance of rain 50 percent.

Babcock Ranch, FL

Tonight
Thunderstorms
75°24°
50%
Sunday
Thunderstorms
92°/ 75° 33°/ 24°
60%
Monday
Thunderstorms
92°/ 75° 33°/ 24°
50%
Tue-Tue Night
Thunderstorms
88°31°
90%
Wednesday
Thunderstorms
88°31°
80%
Thu Night
Thunderstorms
88°31°
80%
Fri-Fri Night
Thunderstorms
88°31°
70%
Saturday
Thunderstorms
88°31°
70%

Night: Mostly cloudy with scattered showers and thunderstorms this evening, then partly cloudy after midnight. Lows in the mid 70s. East winds 5 to 10 mph. Chance of rain 50 percent.

Names listed above may include county names.

Trending Headlines

Trending Entertainment Headlines

Grassy Key Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Grassy Key Quick Facts

National Two Day Weather Forecast


E-mail the Grassy Key Weather Forecast

Voice your opinion or tell us about page issues...