The Chief Medical Officer for Wales, Dr Ruth Hussey, launches the seasonal flu campaign today.
It is hoped that more people will be encouraged to take up the jab, especially those in 'At Risk' groups and people aged 65 and over.
People in 'at-risk' groups are offered the injection currently, but the take-up is lower in Wales than the rest of the UK.
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Showers will ease and it'll be a dry night for most with clear skies and chilly feeling temperatures.
Hollie Kerrell, 28, was last seen in Knighton on Sunday 22 April. A 35-year-old man has been arrested on suspicion of murder.