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

Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

90°F

32°C

Humidity 68%
Wind Speed E 10 mph
Barometer 30.14 in (1020.5 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 15 Aug 2:53 pm EDT
Extended Forecast for

Key Colony Beach FL

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms. Sunny, with a high near 90. East wind around 10 mph. Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 84. East wind around 10 mph. Chance of precipitation is 10%.

    Low: 84 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89. East wind around 10 mph.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 83. East wind 5 to 10 mph.

    Low: 83 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89. East wind around 5 mph.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 82.

    Low: 82 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 83.

    Low: 83 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms. Sunny, with a high near 90. East wind around 10 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 84. East wind around 10 mph. Chance of precipitation is 10%.
Sunday
Sunny, with a high near 89. East wind around 10 mph.
Sunday Night
Mostly clear, with a low around 83. East wind 5 to 10 mph.
Monday
Sunny, with a high near 89. East wind around 5 mph.
Monday Night
Mostly clear, with a low around 82.
Tuesday
Sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 83.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 83.
Thursday
Sunny, with a high near 89.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 83. Chance of precipitation is 10%.
Friday
Sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Key Colony Beach FL
 24.71°N 81.02°W (Elev. 0 ft)
Last Update:
2:15 pm EDT Aug 15, 2026
Forecast Valid:
3pm EDT Aug 15, 2026-6pm EDT Aug 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