Commuters in the Billings area are advised to slow down as dense patches of fog are possible throughout an area extending to Laurel and Roundup, according to the National Weather Service.

Visibility should be more or less normal by 11 p.m., the NWS office in Billings stated, followed by mostly cloudy skies and a high near 30 degrees today.

Temperatures should increase beginning Friday, which is forecast to bring mostly sunny skies and a high of 44 degrees to downtown Billings.

Scattered snow showers are possible Saturday morning. High temperatures in the 40s and overnight lows in the 20s are expected through the middle of next week.