Grass River Flow, NY 7-Day Night Weather Forecast
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Grass River Flow, NY Weather Forecast


Grass River Flow, NY Weather Forecast Date: 400 PM EDT Tue Aug 25 2026
The area/counties/county of: Southeastern St. Lawrence, including the cities of: South Colton and Star Lake.or toggle through each period.
Tonight... Partly cloudy. Scattered showers until midnight. Lows in the lower 50s. Light and variable winds. Chance of rain 50%.
Wednesday... Partly sunny. Highs in the mid 70s. Light and variable winds.
Wednesday Night... Partly cloudy. Lows in the upper 50s. Light and variable winds, becoming south around 10 mph after midnight.
Thursday... Showers likely with a chance of thunderstorms. Highs in the upper 70s. South winds around 10 mph with gusts up to 25 mph. Chance of rain 70%.
Thursday Night... Showers likely with a chance of thunderstorms. Lows in the mid 50s. Southwest winds around 10 mph. Chance of rain 70%.
Friday... Partly sunny with a 30% chance of showers. Highs in the lower 70s.
Friday Night... Mostly clear. Lows in the upper 40s.
Saturday... Clear. Highs in the lower 70s. Lows in the upper 40s.
Saturday Night... Clear. Highs in the lower 70s. Lows in the upper 40s.
Sunday... Partly sunny. Highs in the mid 70s.
Sunday Night... Partly cloudy with a 40% chance of showers. Lows in the upper 50s.
Monday... Partly cloudy. A 50% chance of showers. Highs in the mid 70s. Lows in the upper 50s.
Monday Night... Partly cloudy. A 50% chance of showers. Highs in the mid 70s. Lows in the upper 50s.
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