A winter weather advisory is in effect for northern parts of Connecticut until early Friday morning.
The National Weather Service (NWS) says Hartford, Tolland and Windham counties can expect mixed precipitation with snow accumulations of up to one inch and ice accumulations of around one tenth of an inch.
"Plan on slippery road conditions," the agency says. "The hazardous conditions could impact the evening commute."
In Connecticut's northwest hills the NWS says a wintry mix of snow, sleet and freezing rain is expected this evening. Winds may gust as high as 35 mph.
Connecticut Public meteorologist Garett Argianas says "patches of drizzle and freezing drizzle will linger into the evening."
"Another round of an icy mix is expected overnight," Argianas says. "Slippery spots could slow the Friday morning commute."
The storm is also impacting other parts of New England, including Massachusetts and northern Rhode Island.
Southern Connecticut wasn't under a winter weather advisory as of Thursday afternoon.
What the NWS describes as a "major coast-to-coast winter storm" has been hitting much of the northern United States this week.
After the storm moves through Connecticut, Friday is expected to be bright, windy and chilly — with temperatures dropping through the 30s into the 20s. A dusting of snow is possible Saturday.