Make the most of Thursday (January 30) as this is the only day for the rest of the week Met Office forecasters have not issued a yellow warning of rain for East Sussex.
For the rest of today (Tuesday January 28) forecasters said there would be frequent showers, some heavy, bringing a further 10-15 mm.
Tomorrow there could be further rain at times which may be locally persistent.
The chief forecaster said there was some uncertainty about details of rainfall, but there was the chance of 15 to 20 mm in a few areas, with the risk of localised flooding impacts as a result.
“As it turns colder, the rain could even turn to sleet or wet snow, more likely across the Downs and other hillier areas,” the chief forecaster said.
On Friday a further area of heavy rain is predicted to spread eastwards across the UK, clearing the southeast of England during the early hours of Saturday.
Forecasters said 20-30 mm of rain will fall quite widely and the heavy rain will be accompanied by strong to gale force winds.
The chief forecaster said: “Another very deep area of low pressure will spread heavy rain and strong to gale force winds eastwards across the UK during Friday, before the associated frontal systems clear the southeast of England during the early hours of Saturday.
“Following recent wet weather, the areas highlighted have saturated ground and are particularly sensitive to further heavy rain.”