Firefighters are working to retrieve an Abercarn schoolbus after it left the road in icy conditions and ended up balancing on a verge.
South Wales Fire & Rescue crews were called to the village of Llanfach at 9am after the bus skidded off course.
Sixteen children aged 8-12 scrambled to safety, along with three adults, and were given a precautionary check-up at a nearby GP surgery. All were from Abercarn Primary School.
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Many places will start dry, but rain in the southeast will spread to most for a time overnight.
The family of Isaac Nash who went missing after being swept out to sea last summer have presented a cheque for £10,000 to the RNLI.
There is likely to be a good deal of cloud around today, thickest in the southeast, where outbreaks of rain are possible at times.