A flood watch is in effect for St. Lawrence County from April 14 at 11 p.m. until April 16 at 8 a.m., according to the National Weather Service (NWS).

Before the rain, St. Lawrence County residents will be teated to sunny skies and a high near 63 today, forecasters say. Winds will be southwest at 15 to 20 miles per hour with gusts of 21 to 26 mph.

Tonight the overnight low will be 33 with southwest winds of 13 to 18 mph, the service says.

Sunday will see rain begin after 1 p.m. with a high near 47, NWS says. The chance of precipitation is 80 percent. Rain will likely continue Sunday night and into Monday.

A moisture-laden frontal system will bring widespread rainfall late Sunday through Monday morning, with rainfall amounts from .75 to 1.25 inches expected. In addition, warmer temperatures will increase snowmelt from higher elevations, leading to significant runoff into area rivers and streams, the service says.

A flood watch means there is a potential for flooding based on current forecasts.

People should monitor later forecasts and be alert for possible flood warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

The forecast through next Friday is as follows:

Sunday

Rain, mainly after 1pm. High near 47. Calm wind becoming northeast 5 to 8 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Sunday Night

Rain. Low around 38. East wind 6 to 11 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

Monday

Rain before 3pm, then showers likely after 3pm. High near 45. Northwest wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday Night

Rain showers likely, possibly mixing with snow after 1am, then gradually ending. Cloudy, then gradually becoming partly cloudy, with a low around 31. Northwest wind 9 to 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday

Mostly sunny, with a high near 50. West wind around 10 mph.

Tuesday Night

Partly cloudy, with a low around 33. West wind around 6 mph becoming calm in the evening.

Wednesday

A 30 percent chance of showers after 8am. Mostly sunny, with a high near 55. Calm wind becoming northeast around 5 mph in the afternoon.

Wednesday Night

A 50 percent chance of showers. Mostly cloudy, with a low around 39. Southeast wind around 6 mph.

Thursday

A 50 percent chance of showers. Mostly cloudy, with a high near 60. South wind around 9 mph.

Thursday Night

Showers likely. Cloudy, with a low around 48. South wind around 11 mph. Chance of precipitation is 60%.

Friday

Showers likely. Cloudy, with a high near 65. South wind around 14 mph. Chance of precipitation is 60%.