A hazardous weather outlook is in effect for St. Lawrence County, with light snow of one to three inches expected across the St. Lawrence Valley today, followed by periodically heavier precipitation Sunday.

Accumulations are expected to remain around one to three inches Sunday, but "could fall in a very short period of time" in small squalls, according to the National Weather Service.

"Bitterly cold" weather will likely move into the area on an arctic cold front Monday and remain through Friday, the service says. High temperatures are expected to hover just above zero, with lows of up to 15 degrees below zero.

For up to date weather information visit our weather page at northcountrynow.com/weather.

The full forecast follows:

• Today: Light snow likely, mainly after 4pm. Cloudy, with a high near 33. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.

• Tonight: A 50 percent chance of snow showers. Cloudy, with a low around 24. Southwest wind 5 to 11 mph. New snow accumulation of 1 to 2 inches possible.

• Sunday: Snow showers likely, mainly after 8am. The snow could be heavy at times. Cloudy, with a high near 29. Southwest wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

• Sunday Night: Snow showers likely before 11pm. The snow could be heavy at times. Cloudy, then gradually becoming partly cloudy, with a low around 5. Wind chill values as low as -9. Breezy, with a west wind 13 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

• M.L.King Day: Mostly cloudy and cold, with a high near 9. West wind 7 to 9 mph.

• Monday Night: Mostly cloudy, with a low around -10. West wind 7 to 9 mph.

• Tuesday: Partly sunny and cold, with a high near -1. West wind around 7 mph.

• Tuesday Night: Mostly cloudy, with a low around -16. West wind 5 to 7 mph.

• Wednesday: Partly sunny and cold, with a high near 1. West wind around 6 mph.

• Wednesday Night: Mostly cloudy, with a low around -7. West wind around 5 mph becoming calm in the evening.

• Thursday: Mostly cloudy and cold, with a high near 6. Calm wind becoming northwest around 6 mph in the afternoon.

• Thursday Night: Mostly cloudy, with a low around -6. West wind around 6 mph.

• Friday: Partly sunny, with a high near 12. Southwest wind 6 to 8 mph.