Severe Thunderstorms and Heavy Rain in the Mid-Atlantic; Heat Persists Across the South

Scattered severe thunderstorms and excessive rainfall are possible into the night in the Mid Atlantic, and heavy rain will shift to Virginia and the Carolinas on Friday. Severe thunderstorms are also possible in the Central Plains into the Upper MS Valley and the Deep South tonight. Dangerous heat persists across the Southern Plains and Lower MS Valley and heat will expand into the Southwest. Read More >

For More Weather Information:

Key West, FL Local Forecast Office

Boot Key Harbor FL

Marine Point Forecast

[NOTICE]

Today
High: 91 °F
Light Wind
< 1ft
Tonight
Low: 82 °F
SE 10kt
< 1ft
Saturday
High: 91 °F
Light Wind
< 1ft
Saturday Night
Low: 82 °F
SE 10kt
< 1ft
Sunday
High: 91 °F
Light Wind
< 1ft
Sunday Night
Low: 82 °F
SE 10kt
< 1ft
Monday
High: 91 °F
E 10kt
< 1ft
Monday Night
Low: 82 °F
E 10kt
< 1ft
Tuesday
High: 89 °F
E 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:15 am CDT Aug 21, 2026
Forecast Valid: 8am CDT Aug 21, 2026-6pm CDT Aug 27, 2026

View Nearby Observations

Detailed Forecast

Today

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

Tonight

SE wind 5 to 10 kt. Partly cloudy. Seas 1 ft or less.

Saturday

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

Saturday Night

SE wind 5 to 10 kt. A slight chance of showers and thunderstorms. Seas 1 ft or less.

Sunday

Variable winds 5 kt or less. A slight chance of showers and thunderstorms. Seas 1 ft or less.

Sunday Night

SE wind 5 to 10 kt. A slight chance of showers and thunderstorms. Seas 1 ft or less.

Monday

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

Monday Night

E wind around 10 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Tuesday

E wind around 10 kt. A slight chance of showers and thunderstorms. 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.