It will be windy this morning before temperatures drop this afternoon in the St. Lawrence Valley, according to the National Weather Service.

Forecasters are also warning that, with the recent heavy snows, first freezing temperatures and then thawing, there is the potential for ice breakup and movement with possible ice jams, particularly on the Little Salmon River in the Bombay area of Franklin County. Some minor flooding due to ice jams is occurring on Rt. 32.

Winds will be diminishing and temperatures will be dropping off this afternoon, into the lower 30s, as sunshine emerges in the St. Lawrence Valley. A little rain and then snow might fall but little accumulation is expected.

Tonight temperatures will fall into the teens and winds will diminish before they pick up again tomorrow under partly sunny skies with highs in the 30s.

The NWS forecast for the St. Lawrence Valley and the northwestern Adirondacks:

• Today: A chance of rain and snow showers before 4pm, then a slight chance of snow showers. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a temperature falling to around 31 by 5pm. West wind 8 to 13 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

• Tonight: Mostly cloudy, with a low around 14. West wind 5 to 7 mph becoming calm in the evening.

• Tuesday: Partly sunny, with a high near 32. Calm wind becoming southwest 5 to 8 mph in the afternoon. Winds could gust as high as 21 mph.

• Tuesday Night: Mostly clear, with a low around 13. Southwest wind 5 to 7 mph.

• Wednesday: Mostly sunny, with a high near 34. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 40 mph.

• Wednesday Night: A 30 percent chance of snow showers after 1am. Cloudy, with a low around 10.

• Thursday: A 30 percent chance of snow showers. Mostly cloudy, with a high near 20.

• Thursday Night: A 30 percent chance of snow showers. Mostly cloudy, with a low around 3.

• Friday: A 30 percent chance of snow showers. Mostly cloudy, with a high near 20.

• Friday Night: A 30 percent chance of snow showers. Mostly cloudy, with a low around 8.

• Saturday: A 40 percent chance of snow showers. Cloudy, with a high near 23.

• Saturday Night: A 40 percent chance of snow showers. Cloudy, with a low around 13.

• Sunday: A 40 percent chance of snow showers. Cloudy, with a high near 23. Breezy.