Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

For More Weather Information:

Key West, FL Local Forecast Office

3NM N American Shoal Light FL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 90 °F
Light Wind
1ft
Tonight
Low: 84 °F
Light Wind
< 1ft
Labor Day
High: 90 °F
Light Wind
< 1ft
Monday Night
Low: 84 °F
Light Wind
< 1ft
Tuesday
High: 90 °F
Light Wind
< 1ft
Tuesday Night
Low: 84 °F
E 10kt
< 1ft
Wednesday
High: 91 °F
E 10kt
1ft
Wednesday Night
Low: 84 °F
E 15kt
1-2ft
Thursday
High: 90 °F
ESE 10kt
1-2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:15 pm CDT Sep 6, 2026
Forecast Valid: 4pm CDT Sep 6, 2026-6pm CDT Sep 12, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

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

Tonight

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

Labor Day

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

Monday Night

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

Tuesday

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

Tuesday Night

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

Wednesday

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

Wednesday Night

E wind 10 to 15 kt. Showers likely and possibly a thunderstorm. Seas 1 to 2 ft.

Thursday

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