Extreme Heat Across the Southern U.S.; Severe Thunderstorms and Heavy Rain in the Northern Plains and Upper Midwest

Dangerous heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms will produce damaging winds and heavy rainfall over portions of the northern/central Plains into the mid/upper-Mississippi Valleys today. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

For More Weather Information:

Duluth, MN Local Forecast Office

10NM SW Grand Portage MN

Marine Point Forecast

[NOTICE]

Today
High: 68 °F
WSW 10kt
< 1ft
Tonight
Low: 54 °F
WSW 10kt
< 1ft
Friday
High: 69 °F
Light Wind
< 1ft
Friday Night
Low: 52 °F
Light Wind
< 1ft
Saturday
High: 65 °F
Light Wind
< 1ft
Saturday Night
Low: 49 °F
Light Wind
< 1ft
Sunday
High: 62 °F
Light Wind
< 1ft
Sunday Night
Low: 49 °F
Light Wind
< 1ft
Monday
High: 69 °F
SSW 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: 9:49 am CDT Jul 30, 2026
Forecast Valid: 10am CDT Jul 30, 2026-6pm CDT Aug 5, 2026

View Nearby Observations

Detailed Forecast

Today

WSW wind around 10 kt, with gusts as high as 20 kt. A chance of showers, with thunderstorms also possible after 1pm. Waves 1 ft or less.

Tonight

WSW wind 5 to 10 kt becoming ENE after midnight. A chance of showers and thunderstorms, mainly after 2am. Waves 1 ft or less.

Friday

Variable winds 5 kt or less. A slight chance of showers before 9am. Waves 1 ft or less.

Friday Night

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

Saturday

Variable winds 5 kt or less. A slight chance of showers after 1pm. Waves 1 ft or less.

Saturday Night

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

Sunday

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

Sunday Night

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

Monday

ESE wind 5 to 10 kt becoming SW in the afternoon. Mostly sunny. 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.