The National Weather Service has St. Lawrence County under a hazardous weather outlook through Thursday night in anticipation of a couple inches of snow and wintry mix precipitation.

The NWS predicts snow after 3 a.m. Thursday, no more than a half-inch. They are calling up to 70 percent chances countywide.

They say most of the county is looking at a 100 percent chance of wintry mix on Thursday. Meteorologists say snow, freezing rain and sleet is possible before 4 p.m., bringing up to 2 inches of snow.

Temperatures are predicted as high as 37 degrees in most of the county, with Star Lake looking at a high of 45, the NWS said.

There is up to an 80 percent chance of rain Friday, with temperatures countywide predicted in the mid 40s.

The detailed forecast for Potsdam:

Wednesday night - Snow likely, mainly after 3am. Cloudy, with a low around 25. Northeast wind around 9 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.

Thursday - Snow and sleet before 4pm, then sleet, possibly mixed with rain. High near 37. Northeast wind around 15 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 2 inches possible.

Thursday night - Rain. Temperature rising to around 42 by 5am. East wind 11 to 14 mph becoming south after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Friday - Rain likely, mainly before noon, then a chance of drizzle after 1pm. Mostly cloudy, with a high near 46. West wind 9 to 13 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday night - Mostly cloudy, with a low around 24. Northwest wind 5 to 9 mph becoming calm after midnight.

Saturday - Sunny, with a high near 46. Calm wind.

Saturday night - Partly cloudy, with a low around 29. Calm wind.

Sunday - Partly sunny, with a high near 55. Southwest wind 5 to 7 mph.

Sunday night - A 50 percent chance of rain. Cloudy, with a low around 36. Light south wind.

Monday - Rain likely. Cloudy, with a high near 45. Light northwest wind. Chance of precipitation is 60%.

Monday night - A chance of rain and snow. Mostly cloudy, with a low around 27. Northwest wind 3 to 6 mph. Chance of precipitation is 50%.

Tuesday - Mostly sunny, with a high near 41. Northwest wind around 10 mph.

Tuesday night - Partly cloudy, with a low around 24. West wind 3 to 8 mph.

Wednesday - Mostly sunny, with a high near 48. Southwest wind 8 to 10 mph.