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

Dangerous Heat and Possible Flooding This Week

Hot temperatures and high humidity are forecast to continue across much of east Texas into the mid-Mississippi Valley through this week. Heavy to excessive rainfall occurring at times through Friday could bring areas of flooding across parts of the central Plains into the upper Midwest and Four Corners states. Read More >

Hazardous Weather Conditions

Current conditions at

Key West International Airport (KEYW)

Lat: 24.56°NLon: 81.76°WElev: 3ft.

Partly Cloudy

88°F

31°C

Humidity 68%
Wind Speed SE 9 mph
Barometer 30.06 in (1018.3 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 15 Sep 1:53 pm EDT
Extended Forecast for

Key West FL

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms. Mostly sunny, with a high near 92. East wind around 10 mph. Chance of precipitation is 30%.

    High: 92 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms. Partly cloudy, with a low around 81. East wind around 15 mph. Chance of precipitation is 40%.

    Low: 81 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 91. East wind 10 to 15 mph. Chance of precipitation is 50%.

    High: 91 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 81. East wind around 15 mph. Chance of precipitation is 60%.

    Low: 81 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 91. East wind around 10 mph. Chance of precipitation is 70%.

    High: 91 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 80. Chance of precipitation is 80%.

    Low: 80 °F

    Showers

  • Friday

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

    High: 91 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 80. Chance of precipitation is 50%.

    Low: 80 °F

    Chance
    T-storms

  • Saturday

    Saturday: 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

This Afternoon
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. East wind around 10 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms. Partly cloudy, with a low around 81. East wind around 15 mph. Chance of precipitation is 40%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. East wind 10 to 15 mph. Chance of precipitation is 50%.
Wednesday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 81. East wind around 15 mph. Chance of precipitation is 60%.
Thursday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 91. East wind around 10 mph. Chance of precipitation is 70%.
Thursday Night
Showers and possibly a thunderstorm. Low around 80. Chance of precipitation is 80%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 80. Chance of precipitation is 50%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 50%.
Sunday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 80. Chance of precipitation is 50%.
Monday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Key West FL
 24.55°N 81.77°W (Elev. 7 ft)
Last Update:
1:15 pm EDT Sep 15, 2026
Forecast Valid:
2pm EDT Sep 15, 2026-6pm EDT Sep 21, 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