Saint Lawrence River - Cape Vincent to Ogdensburg including the Thousand Islands Marine Forecast
| Tonight...North Winds Less Than 10 Knots. Becoming Mainly Clear. |
| Thursday...Light And Variable Winds. Sunny. |
| Thursday Night...Southwest Winds 10 Knots Or Less. Partly Cloudy. |
| Friday...West Winds 10 Knots Or Less Becoming Northwest. Mostly Sunny. |
| Friday Night...Northwest Winds 10 Knots Or Less. Mainly Clear. |
| Saturday...North Winds 10 Knots Or Less. Sunny. |
| Sunday...Northwest Winds 10 Knots Or Less. Mostly Sunny. |
| Monday...South Winds 5 To 10 Knots. A Chance Of Showers Monday Night. |