National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Key West International Airport (KEYW)

Lat: 24.56°NLon: 81.76°WElev: 3ft.

A Few Clouds

79°F

26°C

Humidity 79%
Wind Speed E 9 mph
Barometer 30.00 in (1016.3 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 18 Apr 8:53 am EDT
Extended Forecast for

3 Miles SW Marquesas Keys FL

  • Today

    Today: A slight chance of showers before 11am. Mostly sunny, with a high near 80. East wind 10 to 15 mph. Chance of precipitation is 10%.

    High: 80 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 76. East wind around 15 mph.

    Low: 76 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 79. East wind around 10 mph.

    High: 79 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 75. North wind 10 to 15 mph.

    Low: 75 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79. North wind 10 to 15 mph.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers. Mostly cloudy, with a low around 74. Windy. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    Showers and
    Windy

  • Tuesday

    Tuesday: A slight chance of showers. Mostly sunny, with a high near 77. Very windy. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers and
    Very Windy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 73. Windy.

    Low: 73 °F

    Partly Cloudy
    and Windy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. Windy.

    High: 77 °F

    Mostly Sunny
    and Windy

Detailed Forecast

Today
A slight chance of showers before 11am. Mostly sunny, with a high near 80. East wind 10 to 15 mph. Chance of precipitation is 10%.
Tonight
Mostly cloudy, with a low around 76. East wind around 15 mph.
Sunday
Partly sunny, with a high near 79. East wind around 10 mph.
Sunday Night
Mostly cloudy, with a low around 75. North wind 10 to 15 mph.
Monday
Mostly sunny, with a high near 79. North wind 10 to 15 mph.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 74. Windy. Chance of precipitation is 20%.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 77. Very windy. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 73. Windy.
Wednesday
Mostly sunny, with a high near 77. Windy.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 72. Windy. Chance of precipitation is 10%.
Thursday
A slight chance of showers. Mostly sunny, with a high near 77. Breezy. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 74. Breezy. Chance of precipitation is 10%.
Friday
Mostly sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Marquesas Keys FL
 24.54°N 82.13°W (Elev. 0 ft)
Last Update:
8:15 am EDT Apr 18, 2026
Forecast Valid:
9am EDT Apr 18, 2026-6pm EDT Apr 24, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation