An open-top bus parade through Newport is due to begin at 6pm this evening.
The bus will leave Rodney Parade and travel along Corporation Road, Clarence Place and up to the Civic Centre for a drinks reception.
One Newport County fan Darren Broadribb says the celebrations haven't stopped since Sunday's victory.
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Two people have died after being involved in separate lightning strikes in Wales' Brecon Beacons today.
Any lingering showers will ease this evening, to leave a dry night with plenty of clear spells. Minimum temperature 11 deg C (52 deg F).
Blackwood mother Trudy Jones was on holiday when she was gunned down in the Tunisian beach massacre that claimed the lives of 30 Britons.