Heat Wave Persists Over the Central U.S.; Significant Flooding Expected in the Northern Mid-Atlantic Tuesday

Dangerous and extreme heat will remain across portions of the Central U.S. this week, persisting across the Mid to Lower Mississippi Valleys, Gulf Coast, Southern Plains and portions of Texas. A heat wave over the Southwest will intensify late this week. Severe thunderstorms and flash flooding will spread from the Great Lakes/Ohio Valley to the Mid-Atlantic and Northeast the next few days. Read More >

Hazardous Weather Conditions

For More Weather Information:

Duluth, MN Local Forecast Office

12NM E Superior WI

Marine Point Forecast

[NOTICE]

Tonight
Low: 59 °F
Light Wind
1-2ft
Tuesday
High: 72 °F
Light Wind
< 1ft
Tuesday Night
Low: 59 °F
Light Wind
< 1ft
Wednesday
High: 75 °F
Light Wind
< 1ft
Wednesday Night
Low: 61 °F
Light Wind
< 1ft
Thursday
High: 76 °F
Light Wind
< 1ft
Thursday Night
Low: 63 °F
Light Wind
< 1ft
Friday
High: 74 °F
Light Wind
< 1ft
Friday Night
Low: 63 °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: 8:22 pm CDT Jul 27, 2026
Forecast Valid: 10pm CDT Jul 27, 2026-6pm CDT Aug 3, 2026

View Nearby Observations

Detailed Forecast

Tonight

Variable winds 5 kt or less. Patchy dense fog after 1am. Waves 1 to 2 ft.

Tuesday

Variable winds 5 kt or less. Areas of dense fog before 9am. Waves 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Patchy fog after 3am. Waves 1 ft or less.

Wednesday

Variable winds 5 kt or less. A slight chance of showers and thunderstorms after 1pm. Patchy fog before 9am. Waves 1 ft or less.

Wednesday Night

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

Thursday

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

Thursday Night

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

Friday

Variable winds 5 kt or less. A chance of showers, with thunderstorms also possible after 1pm. Waves 1 ft or less.

Friday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly before 1am. 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.