John's Boat Harbor
Facilities & Weather Forecast



John's Boat Harbor
Marina in United States
Located at 2407 Hwy C, St Charles, MO 63301, United States Member only Marina on the Mississppi River Upper Mississippi River Mile Marker 231.8
John's Boat Harbor Facilities
Electricity
Petrol
Water
Showers
Toilets
Boatbuilder
38.87821 N, -90.62325 E
John's Boat Harbor Information
Active Winter Community?
Yes
Manoeuvrability
Fair
Approaches & Channel Marking
Fair
Dock Type
Floating
Depth at MLW
< 2m
Current/Tidal Flow
Beware
Port of Entry
No
Visitor Berths
Yes
Telephone
+16369462073John's Boat Harbor Weather Forecast
Tue
9AM - 1PM
06 January 2026
- W 8 knots. Gusts up to 17 knots.
- 14°C
- UV Index: 1 - Low
- Mostly fine
Tue
1PM - 5PM
06 January 2026
- W 8 knots. Gusts up to 17 knots.
- 11 to 16°C
- UV Index: 0 - Low
- Mostly fine
Tue
5PM - 9PM
06 January 2026
- W 6–8 knots. Gusts up to 18 knots.
- Decreasing from 12 to 6°C
- UV Index: 0 - Low
- Mostly fine
