This Sunday -- one of the busiest travel days of the year -- weather may impact those who are hitting the road and heading to the airport after Thanksgiving.

Snow is forecast to hit Illinois, Indiana and northern Ohio on Sunday. One to three inches is possible in Chicago.

The snow will reach northern Pennsylvania and upstate New York by Sunday night.

On Monday morning, the snow will be confined to upper New England, where 3 to 12 inches is possible.

One to three inches of rain is soaking roadways along the East Coast from this cross-country holiday week storm.

The heavy rain is ongoing Wednesday morning from Norfolk, Virginia, to Charleston, South Carolina.

In New England, rain is still falling in Boston and snow is ongoing in Vermont, New Hampshire and Maine. The last bits of precipitation will leave New England by midnight.

On Thursday, it'll be a cold Thanksgiving morning across the U.S.

Wind chills -- what temperature it feels like -- are forecast to plunge to 36 degrees in New York City, 35 degrees in Atlanta, 27 degrees in Chicago and 24 degrees in Denver.

Meanwhile, a new storm is forming in the West. Rain is coming down throughout much of Washington Wednesday morning. It will spread through Idaho and Montana with scattered rain and snow showers Wednesday.

Snow will reach most of Wyoming Thanksgiving morning. By Thanksgiving afternoon, it will be snowing in Nevada and Utah.

Snow will arrive Thursday night in Colorado, including in Denver, where intermittent snow showers will continue Friday morning.

Despite the rough weather, air travel is smooth so far ahead of the Thanksgiving holiday.

Only 49 flights have been canceled across the U.S. on Tuesday.

Airports in the Washington, D.C., and New York City areas may see some delays Tuesday evening as the storm lingers along the East Coast.

Heavy rain and gusty winds are hitting Atlanta, Charlotte, North Carolina, and Washington, D.C., on Tuesday afternoon, impacting those hitting the road for Thanksgiving.

By 7 p.m. Tuesday, the storms will be ending for Atlanta. But in Charlotte, the rain and wind will last through 11 p.m. In D.C., the heaviest rain will hit from 5 p.m. to 11 p.m. Tuesday.

In New York City, the heaviest rain will hit overnight Tuesday into Wednesday.

The rain will keep moving north, reaching Boston by Wednesday morning.

The East Coast will dry out by 5 p.m. Wednesday, with only lingering rain and snow in Maine.