For More Weather Information:

Duluth MN

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 5:51 pm CDT Sep 20, 2026
Forecast Valid: 6pm CDT Sep 20, 2026-6pm CDT Sep 27, 2026

Tonight

ENE wind 10 to 15 kt. Mostly cloudy. Waves 1 to 2 ft.

Monday

E wind 5 to 15 kt. Mostly cloudy. Waves 1 ft or less.

Monday Night

ENE wind 5 to 15 kt. Partly cloudy. Waves 1 ft or less.

Tuesday

E wind 5 to 15 kt. Cloudy through mid morning, then gradual clearing. Waves 1 ft or less.

Tuesday Night

ENE wind 10 to 15 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming E 5 to 10 kt in the afternoon. Sunny. Waves 1 ft or less.

Wednesday Night

ENE wind 5 to 10 kt becoming SSE after midnight. Mostly clear. Waves 1 ft or less.

Thursday

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

Thursday Night

Variable winds 5 kt or less. Mostly 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.