Mother Nature can rain on the NYC parade.

A storm expected to hit the Northeast threatens to put a damper on the Macy’s Thanksgiving Day Parade.

Although forecasts for Thursday morning call for clear skies so far, the storm system could arrive ahead of schedule, FOX Weather meteorologist Cody Braud told The Post.

“It is 100% certain that a system is knocking on our door, but we just don’t know the exact timing yet,” says Braud.

Either way, it will be chilly along the route through Midtown Manhattan, with temperatures expected to reach a high of just 44 degrees under cloudy skies on Thursday.

Early forecasts showed no visibility and winds were not expected to interfere with the festivities, which start at 8:30 a.m. at West 77th Street and Central Park West.

Travel leading up to Turkey Day will be best on Monday and Wednesday, forecasters predict, as a storm system will move through northern states on Tuesday.

On the West Coast, early Thanksgiving travel will be made messy by heavy rain, gusty winds and mountain snow, especially in Portland, Oregon and San Francisco. The region was drenched by a ‘bomb cyclone’ last week, leaving hundreds of thousands of people without power and killing at least two people.

Travel after the holiday will be trickier for many in the Northeast and the Great Lakes region, thanks to a storm that could bring showers on the coast and possibly a white Black Friday inland.

“I would plan for a very bad day of travel on Friday as that low will likely be just offshore and bring strong winds, rain and probably snow,” Braud noted.

But there is a silver lining, he said.

“This potential parade of systems that could bring more precipitation each time – an inch or two of rain – would really help us hopefully get out of this drought.”

New York City is under an ongoing drought warning, the first in more than two decades, despite much-needed rain that fell Thursday. The region is still nearly 8 inches short of normal precipitation totals for the year.

Saturday and Sunday should bring better travel days, experts advised.

Nearly 80 million travelers will travel 50 miles or more during the holidays – 72 million by car, AAA predicts. That is 1.3 million more travelers on the road than last year.

Air traffic is also expected to reach new heights. More than 5.8 million people will board domestic flights, an increase of 2% compared to last year and almost 11% compared to 2019.