Regional Outbreaks of Severe Weather Through Early Next Week; Early Season Heat Wave across the South

Active spring pattern across the center of our nation with several episodes of severe weather and heavy rainfall expected into next week. The potential for very large hail, long track tornadoes, severe wind gusts, frequent cloud to ground lightning strikes and flash flooding are in the outlook. Furthermore, dangerous early season heat wave continues for the Gulf Coast states into early next week. Read More >

For More Weather Information:

Key West, FL Local Forecast Office

3NM WSW Islamorada FL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 86 °F
Light Wind
< 1ft
Tonight
Low: 80 °F
ESE 10kt
< 1ft
Sunday
High: 86 °F
Light Wind
< 1ft
Sunday Night
Low: 80 °F
ESE 10kt
< 1ft
Monday
High: 86 °F
Light Wind
< 1ft
Monday Night
Low: 81 °F
ESE 10kt
< 1ft
Tuesday
High: 87 °F
SSE 10kt
< 1ft
Tuesday Night
Low: 81 °F
ESE 10kt
< 1ft
Wednesday
High: 88 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:25 pm CDT May 17, 2025
Forecast Valid: 12pm CDT May 17, 2025-6pm CDT May 23, 2025

View Nearby Observations

Detailed Forecast

This Afternoon

Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.

Tonight

ESE wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

Sunday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Sunday Night

ESE wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

Monday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Monday Night

ESE wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

Tuesday

SSE wind 5 to 10 kt. Sunny. Seas 1 ft or less.

Tuesday Night

ESE wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

Wednesday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.