Temperatures across Iowa are about to take a nose dive. Highs reached the upper 50s Sunday, but will be nearly half that on Tuesday. National Weather Service meteorologist Aubry Wilkins says the cold air moving in this afternoon will be accompanied by light rain or snow.

Highs on Tuesday will be in the lower 30s in southern Iowa and in the 20s to the north. “It’s going to be pretty windy with that cold too, so it’s going feel a lot colder,” Wilkins said. The rain could change over to snow tonight north of Interstate 80, but Wilkins doesn’t expect much accumulation.

“As far as the south goes, it should be mostly just rain,” Wilkins said. “The north does have a chance for snow. That’s mostly going to be in the late evening or overnight hours as the temperatures get colder. As far as accumulations, maybe an inch or inch-and-a-half.”

Daytime high temperatures are expected in the 20s and 30s through Thursday, with overnight lows in the teens.