Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Key West International Airport (KEYW)

Lat: 24.56°NLon: 81.76°WElev: 3ft.

Partly Cloudy

72°F

22°C

Humidity 71%
Wind Speed N 9 mph
Barometer 30.06 in (1018.6 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 20 Mar 9:53 pm EDT
Extended Forecast for

3 Miles SW Marquesas Keys FL

  • Tonight

    Tonight: Mostly clear, with a low around 70. Breezy, with a northeast wind around 20 mph.

    Low: 70 °F

    Mostly Clear
    and Breezy

  • Saturday

    Saturday: Sunny, with a high near 74. Northeast wind around 15 mph.

    High: 74 °F

    Sunny

  • Saturday Night

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

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 76. Northeast wind around 10 mph.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. East wind around 10 mph.

    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 73.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Tuesday Night

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

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 70. Breezy, with a northeast wind around 20 mph.
Saturday
Sunny, with a high near 74. Northeast wind around 15 mph.
Saturday Night
Mostly clear, with a low around 71. North wind around 10 mph.
Sunday
Sunny, with a high near 76. Northeast wind around 10 mph.
Sunday Night
Mostly clear, with a low around 73. East wind around 10 mph.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 73.
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.
Thursday Night
Mostly clear, with a low around 74.
Friday
Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Marquesas Keys FL
 24.54°N 82.13°W (Elev. 0 ft)
9:15 pm EDT Mar 20, 2026
10pm EDT Mar 20, 2026-6pm EDT Mar 27, 2026
 
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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