About Windmill Marina Association Inc
We are directly east of Minneapolis and St. Paul. We provide public access for boating adventures on the St. Croix River. This National Scenic Riverway offers some of the best boating experiences in the region. Cruise north to see the sites in Stillwater, MN, or travel south to Prescott, WI, and continue your explorations on the Mississippi River. Windmill Marina provides boat slips, boat storage and public access to the St. Croix River in Afton, MN. Additionally, we provide mechanical and maintenance services through our service department. All slips include summer dockage with water and electric, winter storage (wet storage or land storage), Fall pull out, next spring launch. No Trailer storage available.



Facilities
COORDINATES
44.90165 N, -92.78078 E
Port Information
Telephone
Berth Sizes
< 10m, 10-20m
Depth at MLW
2 - 3m
Manoeuvrability
Good
Channel Marking
Excellent
Port of Entry
No
Overseas Visitor Berths
Yes
Dock Type
Floating
Style Side To
Yes
Tidal Flow
Negligible
Active Winter
Yes
Weather Forecast
Sat
5AM - 9AM
28 March 2026
- S 5 knots increasing to 9 knots. Gusts up to 18 knots.
- Increasing from −6 to −3°C
- UV Index: 0 - Low
- Partly cloudy
Sat
9AM - 1PM
28 March 2026
- S 9 knots increasing to 15 knots. Gusts up to 25 knots.
- Increasing from −2 to 8°C
- UV Index: 2 - Low
- Cloudy
Sat
1PM - 5PM
28 March 2026
- SW 14–17 knots. Gusts up to 27 knots.
- Increasing from 8 to 13°C
- UV Index: 3 - Moderate
- Mostly fine