Another record low, -21, was set at Massena’s Richards Field on Tuesday morning, according to the National Weather Service.

This breaks the previous low temperature record for Feb. 24 of -15 degrees set in 2005, the NWS said.

St. Lawrence County should get a reprieve from subzero weather on Tuesday night, but that won’t last long, meteorologists predict.

All areas of St. Lawrence County are forecast at 60 percent odds to get less than a half inch of snow Tuesday night with temperatures hovering around 12 degrees and around 6 degrees in the higher elevations.

On Wednesday, although the odds drop slightly in Canton, Gouverneur and Ogdensburg, the NWS says there is a chance of less than a half inch more. Thermometers are predicted to read in the high teens.

Wednesday night is forecast to bring back temperatures below zero. Skies should be clear, but the temperature could drop to about -16 in Canton and Massena, -15 in Potsdam and -17 in Ogdensburg.

Thursday is forecast to be cold, with temperatures getting a maximum of around 7 degrees and dropping into the negative mid-teens at night.

Friday is predicted to be mostly sunny with thermometers getting to around 12 degrees and slipping back down to just below zero at night.

The detailed forecast for Potsdam:

Tonight - Snow showers likely, mainly after 2 a.m. Cloudy, with a low around 11. Wind chill values as low as -3. South wind 13 to 16 mph. Chance of precipitation is 60 percent. Total nighttime snow accumulation of less than a half inch possible.

Wednesday - Snow showers likely, mainly before 2 p.m. Cloudy, then gradually becoming mostly sunny, with a high near 19. Wind chill values as low as -5. Southwest wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60 percent. New snow accumulation of less than one inch possible.

Wednesday night - Mostly clear, with a low around -15. West wind 5 to 13 mph.

Thursday - Mostly sunny and cold, with a high near 7. Wind chill values as low as -19. Northwest wind around 6 mph.

Thursday night - Partly cloudy, with a low around -14. Light west wind.

Friday - Mostly sunny, with a high near 12. West wind 5 to 8 mph.

Friday night - Partly cloudy, with a low around -3. Southwest wind around 9 mph.

Saturday - Mostly sunny, with a high near 21. Southwest wind 8 to 11 mph.

Saturday night - Partly cloudy, with a low around 6. Southwest wind 7 to 10 mph.

Sunday - A 30 percent chance of snow. Mostly cloudy, with a high near 29. Southwest wind 7 to 11 mph.

Sunday night - A 50 percent chance of snow. Cloudy, with a low around 22. Southwest wind around 9 mph.

Monday - A 30 percent chance of snow showers. Mostly cloudy, with a high near 28. West wind 8 to 11 mph.

Monday night - Partly cloudy, with a low around 4. Northwest wind 5 to 10 mph becoming light and variable after midnight.

Tuesday - A 30 percent chance of snow. Partly sunny, with a high near 27. Calm wind becoming southeast around 6 mph in the afternoon.