Anchorage off Willow Island
Illinois River
Past nights from AIS in Aug–Oct 2024 and Sept–Oct 2025
Where boats stayed: 39.275° N, 90.604° W
21nights
28boats
Nights by wind direction
| From | Nights | Boats | Nights in 20 kt+ | Windiest night (area) |
|---|---|---|---|---|
| N | 1 | 1–2 | – | 3.8 ktgusts 6.8 kt |
| E | 6 | 6 | – | 9.3 ktgusts 18.4 kt |
| SE | 4 | 4 | – | 5.3 ktgusts 8.7 kt |
| S | 3 | 7 | – | 4.7 ktgusts 7 kt |
| SW | 1 | 1–2 | – | 8.4 ktgusts 13.8 kt |
| W | 3 | 4 | – | 4.7 ktgusts 7.4 kt |
| NW | 3 | 5 | – | 10.6 ktgusts 22.5 kt |
Nearby anchorages
- Anchorage off Hurricane Island, Illinois River1 night
- Anchorage off Diamond Island, Titus2 nights
- Anchorage off Westport Island, Hamburg2 nights
- Anchorage near Hardin, Illinois River31 nights
- Anchorage off Spar Island, Illinois River1 night
- Anchorage off Wing Island1 night
- Anchorage off Mortland Island, Illinois River3 nights
- Anchorage off Clarksville Island1 night
AIS shows only boats that carry it and that a receiver hears, so no boats on AIS never means an anchorage is empty or unsuitable. Boats that live here (at their own berth or mooring, or a week or more in one place) are left out, and boats in marinas and at piers are counted apart from the anchorage's nights. Not for navigation.