Light rain is falling in Lincoln, Norfolk and parts of the Omaha area, said Cathy Zapotocny, a meteorologist at the National Weather Service.
Omaha has a 60 percent chance of showers tonight, according to the weather service. Rain could fall intermittently through Thursday.
About one-third of an inch is possible, Zapotocny said.
"It's not going to be a drought-buster," she said.
Isolated storms could occur as the weather system moves through the area, she said.