Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

For More Weather Information:

Duluth, MN Local Forecast Office

10NM SW Grand Portage MN

Marine Point Forecast

[NOTICE]

Tonight
Low: 53 °F
Light Wind
< 1ft
Sunday
High: 63 °F
Light Wind
< 1ft
Sunday Night
Low: 50 °F
Light Wind
< 1ft
Monday
High: 66 °F
NE 10kt
< 1ft
Monday Night
Low: 50 °F
Light Wind
< 1ft
Tuesday
High: 65 °F
Light Wind
< 1ft
Tuesday Night
Low: 50 °F
Light Wind
< 1ft
Wednesday
High: 67 °F
Light Wind
< 1ft
Wednesday Night
Low: 51 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:41 pm CDT Jul 25, 2026
Forecast Valid: 9pm CDT Jul 25, 2026-6pm CDT Aug 1, 2026

View Nearby Observations

Detailed Forecast

Tonight

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

Sunday

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

Sunday Night

Variable winds 5 kt or less. A slight chance of showers, then a chance of showers and thunderstorms after 1am. Waves 1 ft or less.

Monday

NE wind 5 to 10 kt. A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Waves 1 ft or less.

Monday Night

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

Tuesday

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

Tuesday Night

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

Wednesday

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

Wednesday Night

Variable winds 5 kt or less. Partly cloudy. 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.