FPUS41 KALY 070837 City Forecast for Glens Falls, NY Issued Sunday morning - Dec 7, 2014 .Sunday... Sunny, high 26, 0% chance of precipitation. .Sunday night... Low 3, 0% chance of precipitation. .Monday... Partly cloudy, high 27, 10% chance of precipitation. .Monday night... Low 23. .Tuesday... High 38.