Most local police reported cars in ditches and accidents during the rush hour Friday while it was raining and freezing on the pavement.
Geneva Police Cmdr. Julie Nash said evening shift took more than 20 calls for service for accidents and motorist assists.
Geneva officials said they had closed some streets due to icy conditions that night as well.
Batavia Deputy Chief Daniel Eul reported five crashes between 3 and 5 p.m. Friday due to icy road conditions.
"We closed First Street on the hill between Route 31 and Water Street briefly because vehicles were sliding down the hill," Eul said in an email. "Driving conditions seemed poor all over the Tri-Cities during that period. Fortunately there were no injuries reported and our city street crews did a very good job getting salt down on the roadways quickly."
Saturday morning traffic in Batavia had no crashes and temperatures above freezing made the road conditions are much better, Eul said.
County wide, the rush hour was rough with a lot of cars in ditches mostly north of Route 64, Kane County Sheriff Lt. Pat Gengler said.
"Nothing major, but it was pretty bad," Gengler said.
Elburn Police Chief Steve Smith said they had no issues with traffic or accidents Friday night.