The National Weather Service has issued a winter weather advisory for freezing rain, sleet and snow for the San Antonio area.
The advisory is in effect from midnight tonight until noon Friday.
The northern portions of the San Antonio area could see a trace to one quarter inch of snow or trace ice accumulation on exposed surfaces.
Southern areas could see ice accumulation up to two tenths of an inch.
Icy roads will make travel difficult. Motorists are urged to prepare for slippery roads and limited visibilities and use caution while driving.