A warning of ice has been issued for all of Wales by the Met Office
The whole of Wales has been put on ice alert for a second day as temperatures overnight may plummet to as low as -5C.
The Met Office issued a yellow "be aware" warning for ice on Sunday after snow from Friday remained on the ground, making conditions difficult.
Gritters will be working throughout the night to ensure roads are passable in the morning.
Travel problems are still widespread though with many main roads treacherous and some remaining completely blocked.
The M48 Severn Bridge is covered in four inches of ice and will remain closed in both directions until 09:00 GMT on Sunday at the earliest.
Meanwhile one lane is closed in both directions on the M4 second Severn Crossing.
The Penderyn, Maerdy, Bwlch and Rhigos roads all remain closed and are not expected to open until at least Monday. Others that are closed include:
- A4075 in Carew, Pembrokeshire, because of flooding.
- In Powys, the A4215 at Libanus, the A487 at Derwenlas, the A481 at Llanelwedd and the A44 at Crossgates because of ice and snow.
- A542 Horseshow Pass in Llangollen, Denbighshire.
The A4212 at Trawsfynydd, Gwynedd has now re-opened.
First Cymru's bus services across south Wales were running to "near normal" timetables on Saturday except in Bridgend and Maesteg areas where there is some disruption.
Lloyds Coaches which serves Powys said all of its services were operating as normal.
On the railway, First Great Western and Arriva Trains Wales services were operating normally, as was Cardiff Airport and ferry services from Pembrokeshire and Holyhead.
Forecasters say ice could be a problem for the rest of the weekend
BBC Wales weather presenter Owain Wyn Evans warned ice could remain on roads and pavements for several days as temperatures remained low.
"On Saturday night it's very likely to freeze again and tomorrow looks relatively similar to today - cloudy, cold with the odd snow shower," he said.
On Friday, 10,000 homes in west, south and north Wales were left without electricity while 1,388 schools around the country were shut following heavy snowfall.
Many universities and colleges were also closed because of the weather.
The Met Office also had a rare red warning for snow and blizzards in part of the Brecon Beacons and Black Mountains while the rest of the country had an amber warning. Both warnings have since been lifted.
Saturday largely remained dry, and fans from Cardiff Blues and Newport County helped clear snow from pitches to ensure the respective rugby and football matches went ahead.
Cardiff and Vale University Health Board has urged staff working over the weekend to try and make their own way in to work if they live locally because its 4x4 transport is at full stretch.
Send your pictures and videos to yourpics@bbc.co.uk or text them to 61124 (UK) or +44 7624 800 100 (International). If you have a large file you can upload here.
Have you been affected by the snow in Wales? Are you making preparations for the coming days? Please send us your comments using the form below.