1210 AM EDT Thu Jul 23 2020 Oswego-Jefferson-Lewis- Including the cities of Oswego, Watertown, and Lowville 1210 AM EDT Thu Jul 23 2020 .NOW... The short term forecast for the eastern Lake Ontario region, including Oswego, Watertown, and Lowville. Showers crossing the Tug Hill plateau are expected to intensify into thunderstorms as we progress towards 1 AM. One particular cell will move directly across the Tug Hill with rainfall that could total a half inch while also having the potential to produce wind gusts to 35 mph.