Natural Resources Wales is advising people to be alert for possible flooding as more heavy rain is forecast for the whole of Wales.
The Met Office is forecasting heavy showers across Wales with a possibility of up to 40mm of rain falling on Monday morning.
There is a risk that this heavy rainfall may cause flooding of road surfaces and motorists are urged to take care. Localised flooding could also occur as drains, ditches and small streams respond to the heavy rainfall.
People travelling to work, on their holidays or attending events like the National Eisteddfod, are advised to take extra care as driving conditions could be difficult.
Those who are camping or caravanning should also keep an eye on the weather conditions and listen to advice from the site owners.