Lehigh Valley weather: Wintry mix causes multiple crashes in Easton. What to expect into Monday Updated Jan 03, 2021; Facebook Share A wintry mix of snow and sleet has led to multiple motor vehicle crashes in Easton as accumulation is expected to cover the region until at least late Sunday morning, meteorologists say. Weather reports showed low temperatures Saturday evening dropped into the upper 20s, which forecasters say made the ground cold enough in some areas to freeze into a glaze of ice once snow flurries hit it. Other areas in the Lehigh Valley saw snow, forecasters said, with accumulation expected to total about 1 inch.