Freezing rain and ice are expected to affect most parts of the country on Thursday, forecasters have warned.
The Met Office has issued yellow "be aware" warnings for every region in Scotland between midnight and 6pm, with the exception of Orkney and Shetland. It said rain falling on very cold surfaces could freeze instantly, forming a layer of ice.
The forecaster's website said: "The public should be aware that this will make pavements very dangerous locally, and driving conditions could become extremely hazardous, particularly where roads are untreated."
Lindsay Dovey, a forecaster with MeteoGroup, the weather division of the Press Association, said the coldest temperatures would affect the south of the country.
She said: "The temperatures tomorrow don't look too bad, between 3-6C in the south of Scotland and 6-10C in the north. But it will be colder than that during the night and early tomorrow, which is when there will be a possibility of ice.
"There may also be some snow in the central belt, but for most of the country there will be rain."
Transport Minister Keith Brown said: "With these Met Office yellow warnings in place, it is important that people travelling on the roads take extra precautions and check travel bulletins or the Traffic Scotland website for the latest advice.
"The public should be aware that pavements could be very dangerous locally, and driving conditions could become extremely hazardous, particularly as freezing rain is so difficult to treat.
"Transport Scotland, its operating companies and the Met Office have been in regular contact to monitor conditions as they arise and to deploy front-line patrol, gritters and support vehicles this evening and into tomorrow.
"As a precaution, we will be activating some of the Multi Agency Response Team partners from 5am tomorrow to coordinate our response to the conditions."
