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St Lawrence County, NY Weather Forecast
St Lawrence County, NY Weather Forecast Date: 558 PM EDT Wed Sep 30 2026
The area/counties/county of: Southwestern St. Lawrence, including the cities of: Ogdensburg, Potsdam, and Gouverneur.or toggle through each period.
Tonight... Mostly cloudy. Lows around 60. Light and variable winds.
Thursday... Partly sunny in the morning, then becoming mostly cloudy. A 40% chance of showers. Highs in the lower 70s. Southwest winds around 10 mph with gusts up to 30 mph.
Thursday Night... Cloudy. A chance of showers until midnight, then showers after midnight. Lows in the lower 60s. Southwest winds around 10 mph with gusts up to 25 mph. Chance of rain 90%.
Friday... Showers. Highs in the upper 60s. Light and variable winds. Chance of rain near 100%.
Friday Night... Mostly clear. Less humid with lows in the lower 40s. Light and variable winds.
Saturday... Clear. Highs in the lower 60s. Lows in the upper 30s.
Saturday Night... Clear. Highs in the lower 60s. Lows in the upper 30s.
Sunday... Partly sunny. Highs in the mid 60s.
Sunday Night... Partly cloudy with a 40% chance of showers. Lows in the mid 40s.
Monday... Partly sunny. Highs in the upper 50s.
Monday Night... Mostly clear. Lows in the lower 30s. Highs in the lower 50s.
Tuesday... Mostly clear. Lows in the lower 30s. Highs in the lower 50s.
Tuesday Night... Clear. Lows in the lower 30s.
POP = Probability of Precipitation
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