The National Weather Service is warning St. Lawrence County residents that falling temperatures may create slippery roads as people travel home or away for the Christmas weekend.

Pavement temperatures are falling below freezing across northern New York and freezing conditions will spread southeast through the evening.

Wet untreated roadways may become slippery as the surface temperature falls, causing the potential for icing to increase, weather officials say.

Motorists should exercise caution, especially on bridges and overpasses, weather forecasters say. Roads should dry out late this evening diminishing the, threat of ice.

A slight chance of snow is predicted before 8 p.m. Chance of precipitation is 20 percent. Saturday, forecasters are predicting mostly cloudy through mid-morning, then gradual clearing, with a high near 22. Saturday night, expect a low around 11.

On Christmas day, a chance of snow showers is possible, mainly after 7 a.m. Partly sunny skies are predicted, with a high near 36.

For up-to-date forecasts for your community visit the NorthCountryNow.com Weather Page at http://northcountrynow.com/weather