As the nation is gearing up to ring in the New Year, some of its most beloved celebrations from coast to coast are bracing for some unwelcome weather conditions.

For the first time in 20 years, the annual Rose Parade in Pasadena, now celebrating its 137th year, is anticipating rain, on the heels of one of the wettest Christmas seasons in Southern California.

According to the National Weather Service, the New Year’s Day parade will see a 100 percent chance of rain, reaching between one to two inches. There is also a continued risk of flash flooding and mudslides for already vulnerable areas following last week’s winter storm.

City officials took to social media to address forecast concerns and warned spectators not to bring umbrellas along the 5.5-mile parade route on Colorado Boulevard.

“Rain is expected for this year’s Rose Parade,” the post on X reads. “Umbrellas are not permitted along the parade route because they block the view for others. Rain jackets or ponchos are a great alternative so everyone can enjoy the show!”

Drawing in thousands of attendees and hundreds of volunteers annually, this year’s parade, themed “The Magic in Teamwork,” celebrates working together and the accomplishment of collectively achieving an outcome richer than one can experience alone.

Since 1980, the floral celebration has included a lineup of flower-covered floats, equestrian units, marching bands, and tournament entries.

“Last year’s parade theme was ‘Best Day Ever!’ and six days later it was the worst,” City of Pasadena spokesperson Lisa Derderian said, referring to the devastating wildfires in Los Angeles.

“We want to start the new year on a high note. Hopefully Mother Nature cooperates with the weather.”

Meanwhile, across the country, frigid temperatures are returning to the Big Apple as over one million people are expected to gather for the renowned New Year’s Eve ball drop in Times Square.

With the possibility for snow flurries, temperatures are expected to reach the low-to-mid 30s with wind chills in the teens, as AccuWeather predicts it will be the the coldest New Year’s Eve celebration in eight years.

While the weather is not unexpected for the Northeast at this time of year, it does leave visitors with the challenge of staying warm all night long.

This year’s celebration marks the 250th anniversary of the United States with patriotic touches on display. The crystal ball, featuring over 5,000 Waterford crystals, will be illuminated in red, white, and blue after its decent at midnight on New Year’s Eve.

The crystals signify “infinite life, infinite liberty, and infinite happiness,” according to Waterford, marking a positive next chapter going into 2026.

The Associated Press contributed to this report.