Motorists have been warned to exercise "caution" if taking to two busy crossings in Tayside on Thursday.
Parts of Tayside will be hit by "heavy wintry showers" until Friday, say forecasters.
A number of Courier Country roads have closed as heavy snowfall affects much of Scotland.
Weather warnings have been put in place for further snow flurries across Tayside and Fife.
Local roads have been forced to close due to heavy snowfall this morning, however Courier Country has avoided the worst of the winter weather.
Wintry weather from Sunday night into Monday morning caused travel disruption and led to a string of school closures across Scotland.
Commuters faced icy conditions on Monday morning, with heavy snow expected in parts of Scotland amid warnings of vehicles becoming stranded on roads.
Commuters will face icy conditions on Monday morning as sub-zero temperatures grip parts of the UK.
Snow and ice warnings will be in place across Courier Country from Friday until Sunday, with forecasters predicting further plummeting temperatures.
Polar air from beyond Greenland and Iceland has seen temperatures plummet across the UK, with the mercury dipping below zero in many regions.