Heat and Severe Thunderstorms in the Eastern U.S.

A widespread heat wave will peak over the South and East today, with several dozen temperature records expected along the East Coast. Heat should begin to ease this weekend in the Northeast, while hazardous heat continues over the South. Severe thunderstorms capable of damaging winds are possible across parts of the Appalachians, Mid Atlantic, and Northeast this afternoon and evening. Read More >

Hazardous Weather Conditions

For More Weather Information:

Duluth, MN Local Forecast Office

10NM SW Grand Portage MN

Marine Point Forecast

[NOTICE]

This Afternoon
High: 61 °F
WSW 10kt
3-4ft

Small Craft Advisory
Tonight
Low: 45 °F
WSW 10kt
1-3ft

Small Craft Advisory
Saturday
High: 55 °F
W 15kt
1-2ft
Saturday Night
Low: 44 °F
W 10kt
< 1ft
Sunday
High: 57 °F
WNW 15kt
< 1ft
Sunday Night
Low: 44 °F
W 10kt
< 1ft
Monday
High: 58 °F
WSW 15kt
< 1ft
Monday Night
Low: 43 °F
Light Wind
< 1ft
Tuesday
High: 53 °F
SW 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:11 pm CDT Jun 12, 2026
Forecast Valid: 3pm CDT Jun 12, 2026-6pm CDT Jun 19, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

WSW wind around 10 kt, with gusts as high as 20 kt. A slight chance of showers before 4pm, then a slight chance of showers after 5pm. Waves 3 to 4 ft.

Tonight

WSW wind around 10 kt, with gusts as high as 20 kt. A slight chance of showers before 9pm. Waves 1 to 3 ft.

Saturday

W wind around 15 kt, with gusts as high as 25 kt. Partly sunny. Waves 1 to 2 ft.

Saturday Night

W wind around 10 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 ft or less.

Sunday

WNW wind 10 to 15 kt, with gusts as high as 20 kt. Partly sunny. Waves 1 ft or less.

Sunday Night

W wind 5 to 10 kt, with gusts as high as 15 kt. Partly cloudy. Waves 1 ft or less.

Monday

WSW wind 10 to 15 kt. A slight chance of showers and thunderstorms after 1pm. Waves 1 ft or less.

Monday Night

Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

Tuesday

WNW wind 5 to 10 kt becoming SSW in the afternoon. A chance of showers. Waves 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.