WILLMAR — Thursday morning dawned with bright sun and frigid temperatures. At about 8 a.m. the air temperature in Willmar was 18 below zero, with a wind chill of 35 below zero.

A wind chill warning, which went into effect Wednesday afternoon, is set to expire at 10 a. m. in the region, but will be replaced by a wind chill advisory until 12 p.m. today.

The National Weather Service is forecasting wind chills to stay in the range of 25 to 35 below zero until mid-morning. Temperatures this low can cause frostbite on exposed skin in as little as 10 minutes. Many schools in the area started school late Thursday.

Thursday's air temperature is only forecast to reach 4 below zero.

The frigid cold won't last however. While Friday morning will be extremely cold, with wind chills expected in the low 30s below zero, the high temperature for the day is 22 degrees above zero, though winds will be high. Gusts could reach around 30 mph.

Friday night the mercury will actually rise to the mid-20s and Saturday's high is expected to be close to 30 degrees with sun. Sunday will be colder with a high near 20 and a chance of snow.