Marine forecast
Duluth MN to Port Wing
- current wind
- 4 kt SW
- Gusts
- 6 kt
- Air
- 54°F
- Water
- 59°F
- 72-hr peak
- 18 kt
Observed Tue 1:54 PM | LSZ145
- Gusts now
- 6 kt
- Air
- 54°F
- Water
- 59°F
- 72-hr peak
- 18 kt
In brief
At 1:54 pm CDT on Oct 13, 2026, NDBC station DULM5 (Duluth, MN, 5 miles away) measured wind from the SW at 4 kt, gusting to 6 kt. The NWS forecast for Duluth MN to Port Wing issued at 2:22 pm CDT on Oct 13, 2026 reads, for tonight: “Northwest wind 5 to 10 knots. Mostly cloudy.”
Source: National Weather Service Duluth MN forecast; NDBC observations
Wind forecast · ktPeak 18 kt
NWS marine forecast
| Period | Forecast |
|---|---|
| Tonight | Northwest wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet. |
| Wednesday | Northwest wind 5 to 10 knots becoming northeast late in the afternoon. Mostly sunny. Waves 1 foot or less. |
| Wednesday Night | East wind 5 knots becoming southeast early in the morning. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. |
| Thursday | South wind 5 knots becoming southwest 10 to 15 knots with gusts to around 20 knots in the afternoon. Chance of rain showers. Waves 1 foot or less. |
Issued Tue 2:22 PM by Duluth MN (product NSHDLH).
Recent buoy conditions
| Time | Wind | Gust | Seas | Water |
|---|---|---|---|---|
| Tue 1:54 PM | 4 kt SW | 6 kt | — | 59°F |
| Tue 12:54 PM | 5 kt SW | 7 kt | — | 59°F |
| Tue 11:54 AM | 4 kt SW | 7 kt | — | 59°F |
| Tue 10:54 AM | 4 kt SSW | 5 kt | — | 59°F |
| Tue 9:54 AM | 0 kt | 2 kt | — | 59°F |
| Tue 8:54 AM | 0 kt | 1 kt | — | 59°F |
| Tue 7:54 AM | 1 kt NE | 3 kt | — | 59°F |
| Tue 6:54 AM | 2 kt N | 4 kt | — | 59°F |
| Tue 5:54 AM | 3 kt N | 5 kt | — | 59°F |
| Tue 4:54 AM | 3 kt N | 8 kt | — | 59°F |
| Tue 3:54 AM | 5 kt N | 8 kt | — | 59°F |
| Tue 2:54 AM | 4 kt NNE | 7 kt | — | 59°F |
Observed Tue 1:54 PM at NDBC buoy DULM5 (Duluth, MN), 5.3 miles away.
Frequently asked questions
What is the marine forecast for Duluth MN to Port Wing today?
Tonight: Northwest wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet.
Is there a small craft advisory for Duluth MN to Port Wing?
No advisories, warnings or watches are in effect for NWS zone LSZ145 as of the last update on this page. Advisories can be issued at any time; check the current bulletin before leaving the dock.
What is the water temperature at Duluth MN to Port Wing?
The nearest buoy read 59°F (15°C) at Tue 1:54 PM. Sea surface temperature at a single buoy can differ by several degrees from the water at a beach or in a shallow bay nearby.
What do the wind speeds in knots mean?
One knot is 1.15 mph. The National Weather Service issues a small craft advisory for sustained winds of roughly 22–33 knots or hazardous seas, a gale warning at 34–47 knots, and a storm warning at 48 knots and above. Exact advisory thresholds vary by forecast office and by water body — a bay reaches dangerous chop at a lower wind speed than open ocean.
Where does this forecast come from?
The forecast text is the National Weather Service's own marine bulletin for zone LSZ145, issued by Duluth MN, reproduced in full. The wind and seas charts are drawn from the NWS gridded forecast for a point inside the zone. Observations come from the nearest reporting NDBC buoy. We are not affiliated with NOAA or the National Weather Service.
Forecast: NOAA/NWS product NSHDLH, issued Tue 2:22 PM. Observations: NOAA National Data Buoy Center station DULM5, read Tue 1:54 PM. Retrieved Oct 13, 2:42 PM. Conditions offshore change faster than any page can be rebuilt, so check the current NWS bulletin and your own instruments before going out.