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

Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Periods of critical fire weather will persist from the central Rockies to the central Plains through the weekend as gusty winds and low relative humidity continue. Read More >

Current conditions at

Key West International Airport (KEYW)

Lat: 24.56°NLon: 81.76°WElev: 3ft.

A Few Clouds

72°F

22°C

Humidity 66%
Wind Speed NE 13 G 29 mph
Barometer 30.05 in (1018.3 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 19 Mar 10:53 pm EDT
Extended Forecast for

3 Miles SW Marquesas Keys FL

  • Tonight

    Tonight: A slight chance of showers. Partly cloudy, with a low around 69. Windy, with a northeast wind around 25 mph. Chance of precipitation is 10%.

    Low: 69 °F

    Slight Chance
    Showers and
    Windy

  • Friday

    Friday: Sunny, with a high near 72. Windy, with a northeast wind 20 to 25 mph, with gusts as high as 30 mph.

    High: 72 °F

    Sunny and
    Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 70. Breezy, with a north wind around 20 mph.

    Low: 70 °F

    Mostly Clear
    and Breezy

  • Saturday

    Saturday: Sunny, with a high near 73. Breezy, with a northeast wind 15 to 20 mph.

    High: 73 °F

    Sunny and
    Breezy then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71. Northeast wind around 10 mph.

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers. Partly cloudy, with a low around 69. Windy, with a northeast wind around 25 mph. Chance of precipitation is 10%.
Friday
Sunny, with a high near 72. Windy, with a northeast wind 20 to 25 mph, with gusts as high as 30 mph.
Friday Night
Mostly clear, with a low around 70. Breezy, with a north wind around 20 mph.
Saturday
Sunny, with a high near 73. Breezy, with a northeast wind 15 to 20 mph.
Saturday Night
Mostly clear, with a low around 71. Northeast wind around 10 mph.
Sunday
Sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 73.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 72.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
Sunny, with a high near 77.
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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:
11:15 pm EDT Mar 19, 2026
Forecast Valid:
11pm EDT Mar 19, 2026-6pm EDT Mar 26, 2026
 
Forecast Discussion
 
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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