Snowploughs are clearing A roads across the two counties
A severe weather warning has been issued for Herefordshire and Worcestershire after more snow fell.
Up to 8cm (3in) fell overnight on Tuesday and the Met Office said there was a continuing risk of ice on all untreated roads and pavements.
West Midlands ambulance crews have reported difficult driving conditions.
A crew in Worcester had to be rescued from the snow by a 4x4 vehicle. Schools in Herefordshire and Worcestershire were closed on Wednesday due to snow.
In Herefordshire it took ambulance crews three attempts to get to a patient in a remote location, a spokesman said.
London Midland services between Hereford and Birmingham New Street were disrupted due to a problem with line-side equipment in the Malvern area.
In the afternoon it said it was running its normal timetable across most of the network, but on its website it advised passengers to check for service updates before travelling.
Some bus services in Worcestershire have not been operating.
Herefordshire Council said drifts of up to 6ft (1.8m) had been seen on high ground.
Gritting teams and snowploughs are working on the roads with A roads being given priority, a spokesman said.
Staff have been hand gritting Hereford High Town and shopping areas.
On Tuesday, supplies were taken to a single mother and son who had been cut off by treacherous roads for more than three weeks.
Laura Denning lives on Garway Hill and has not been able to get out since before Christmas.
Neighbours have been helping out but the nearest ones are several miles away.
The wintry weather is expected to ease over the weekend.