Weather World
Sylvia Lake, NY Official WebsiteSylvia Lake, NY 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Sylvia Lake, NY Weather Forecast
Sylvia Lake, NY Weather Forecast Date: 211 AM EDT Sun Oct 25 2026
The area/counties/county of: Southwestern St. Lawrence, including the cities of: Ogdensburg, Potsdam, and Gouverneur.or toggle through each period.
Today... Sunny. Highs in the lower 60s. Light and variable winds, becoming southwest around 10 mph this afternoon.
Tonight... Partly cloudy. Lows in the lower 40s. Southwest winds around 10 mph.
Monday... Mostly cloudy with a 50% chance of showers. Highs in the upper 50s. Southwest winds around 10 mph, becoming northwest in the afternoon.
Monday Night... Mostly clear. Lows in the upper 20s. North winds around 10 mph.
Tuesday... Sunny. Highs in the upper 40s. Light and variable winds.
Tuesday Night... Mostly clear. Lows in the lower 20s. Highs in the mid 50s.
Wednesday... Mostly clear. Lows in the lower 20s. Highs in the mid 50s.
Wednesday Night... Partly cloudy. Lows in the lower 40s.
Thursday... Partly sunny with a 30% chance of showers. Highs in the mid 60s.
Thursday Night... Partly cloudy. Lows in the lower 40s. Highs in the lower 60s.
Friday... Partly cloudy. Lows in the lower 40s. Highs in the lower 60s.
POP = Probability of Precipitation
Sylvia Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...