Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Key West International Airport (KEYW)

Lat: 24.56°NLon: 81.76°WElev: 3ft.

Fair

84°F

29°C

Humidity 74%
Wind Speed SE 12 mph
Barometer 29.98 in (1015.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 27 Aug 6:53 am EDT
Extended Forecast for

Key West FL

  • Today

    Today: A chance of showers and thunderstorms.  Mostly sunny, with a high near 91. Southeast wind 5 to 10 mph.  Chance of precipitation is 40%.

    High: 91 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms.  Partly cloudy, with a low around 83. East wind 5 to 10 mph.  Chance of precipitation is 30%.

    Low: 83 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms.  Mostly sunny, with a high near 91. East wind 5 to 10 mph.  Chance of precipitation is 40%.

    High: 91 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 83. East wind around 10 mph.  Chance of precipitation is 40%.

    Low: 83 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms.  Mostly sunny, with a high near 91. East wind 5 to 10 mph.  Chance of precipitation is 30%.

    High: 91 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 83. Chance of precipitation is 40%.

    Low: 83 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms.  Mostly sunny, with a high near 91. Chance of precipitation is 40%.

    High: 91 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 84. Chance of precipitation is 30%.

    Low: 84 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms.  Mostly sunny, with a high near 91. Chance of precipitation is 50%.

    High: 91 °F

    Chance
    T-storms

Detailed Forecast

Today
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Southeast wind 5 to 10 mph. Chance of precipitation is 40%.
Tonight
A chance of showers and thunderstorms. Partly cloudy, with a low around 83. East wind 5 to 10 mph. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. East wind 5 to 10 mph. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 83. East wind around 10 mph. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. East wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 83. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 84. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 83. Chance of precipitation is 50%.
Tuesday
Showers and thunderstorms likely. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 83. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 90. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Key West FL
 24.56°N 81.8°W (Elev. 3 ft)
7:15 am EDT Aug 27, 2026
7am EDT Aug 27, 2026-6pm EDT Sep 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database