The unseasonably warm weather on Sunday did more than just melt snow across New Jersey. It broke a daily temperature record at Atlantic City International Airport.

During the afternoon, the mercury at the airport rose to 64 degrees, breaking the old Jan. 31 record of 63 degrees, set in 1988 and again in 2012, according to the National Weather Service.

The record warmth arrived just one week after New Jersey was hit with a historic blizzard.

The normal high temperature for Atlantic City this time of the winter is 42 degrees, so Sunday's record high was 22 degrees above that.

A few other places in the Garden State were about as warm as Atlantic City on Sunday, including Oswego Lake in Burlington County, which recorded a high temperature of 65 degrees, and Mullica Township in Atlantic County, which hit 64 degrees, according to data from the New Jersey Weather & Climate Network.

Temperatures are expected to remain considerably above normal the next few days -- in the 50s Monday and Tuesday and in the low 60s on Wednesday -- and the weather service says some daily records could be broken that day.

Aside from the warmth, light rain showers are in the forecast for Monday afternoon and heavy rain is expected on Wednesday. Combined with the melting snow, the rain could cause minor to moderate flooding near small streams and rivers, the weather service said.

On Thursday and Friday, temperatures will dip back into the 40s, where they will remain during the weekend, forecasters said.

Len Melisurgo may be reached at LMelisurgo@njadvancemedia.com. Follow him on Twitter @LensReality. Find NJ.com on Facebook.