Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

For More Weather Information:

Key West, FL Local Forecast Office

3NM N American Shoal Light FL

Marine Point Forecast

[NOTICE]

Tonight
Low: 84 °F
E 10kt
1-2ft
Monday
High: 90 °F
E 10kt
1-2ft
Monday Night
Low: 84 °F
E 10kt
1-2ft
Tuesday
High: 90 °F
ESE 10kt
1ft
Tuesday Night
Low: 84 °F
E 15kt
1-2ft
Wednesday
High: 90 °F
ESE 10kt
1-2ft
Wednesday Night
Low: 83 °F
E 10kt
1-2ft
Thursday
High: 90 °F
ESE 10kt
1-2ft
Thursday Night
Low: 83 °F
E 10kt
1-2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:15 pm CDT Aug 30, 2026
Forecast Valid: 7pm CDT Aug 30, 2026-6pm CDT Sep 6, 2026

View Nearby Observations

Detailed Forecast

Tonight

E wind around 10 kt. A chance of showers and thunderstorms. Seas 1 to 2 ft.

Monday

E wind 5 to 10 kt. A chance of showers and thunderstorms. Seas 1 to 2 ft.

Monday Night

E wind around 10 kt. A chance of showers and thunderstorms. Seas 1 to 2 ft.

Tuesday

ESE wind 5 to 10 kt. A chance of showers and thunderstorms. Seas around 1 ft.

Tuesday Night

E wind 10 to 15 kt. A chance of showers and thunderstorms. Seas 1 to 2 ft.

Wednesday

ESE wind around 10 kt. A chance of showers and thunderstorms. Seas 1 to 2 ft.

Wednesday Night

ENE wind around 10 kt becoming ESE after midnight. A chance of showers and thunderstorms. Seas 1 to 2 ft.

Thursday

ESE wind around 10 kt. Showers and thunderstorms likely. Seas 1 to 2 ft.

Thursday Night

E wind around 10 kt becoming SE after midnight. Showers and thunderstorms likely. Seas 1 to 2 ft.

*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.