Cape Vincent Weather Forecast
- 35
- 40
Rain Showers
- 32
- 41
Mostly Cloudy
- 38
- 46
Chance Rain/Snow
- 39
- 55
Chance Rain/Snow
Today 31 Mar Jefferson
Showers in the Morning, then Showers with a chance of Thunderstorms in the afternoon. Highs Ranging from the upper 40s along the lake Ontario shore to the mid 50s inland. Northeast Winds 5 to 10 Mph. Chance of rain near 100 percent.
Tonight 31 Mar Jefferson
A chance of Showers, then Showers with a chance of Thunderstorms late. Some patchy fog developing late. Locally heavy rainfall possible late. Lows Ranging from the lower 40s along the lake Ontario shore to the mid 40s across the tug hill. Light Winds. Chance of rain 90 percent.
Cape Vincent Temperature Statistics
March Temperature
Watertown, Watertown International Airport (18 miles)
Lowest 2 March, 2026
-2.3 °FAverage March
33.8 °FHighest 9 March, 2026
67.6 °F
Climate (2021–Present)
Watertown, Watertown International Airport (18 miles)
Average Low 2021–2026
38.4 °FAverage 2021–2026
48.3 °FAverage High 2021–2026
57.5 °F