There will be a brisk easterly wind at times that will make it feel cold, especially along the Sussex coast.
The maximum temperature is expected to reach 8°C.
Tonight it will be clear and cold across Sussex with the breeze dropping, meaning there will be a frost.
Increasing amounts of mist, fog and low cloud will develop later in the night in some parts of Sussex, with a minimum temperature of -2°C.
Tomorrow (Monday, December 5), it will be mostly cloudy in places with mist and fog slowly lifting through the day before returning during the evening.
It will feel quite cold in many parts with a maximum temperature of 10°C.
The outlook for Tuesday (December 6 to Thursday, December 8) will see fog slowly lifting to leave a cloudy day for most parts of the county on Tuesday.
On Wednesday and Thursday, it will be rather cloudy and breezy with some rain at times but feeling much milder.
Don’t miss out on all the latest breaking news where you live.
Here are four ways you can be sure you’ll be amongst the first to know what’s going on.
1) Make our website your homepage
2) Like our Facebook page
3) Follow us on Twitter
4) Register with us by clicking on ‘sign in’ (top right corner). You can then receive our daily newsletter AND add your point of view to stories that you read here.
And do share with your family and friends - so they don’t miss out!
Always the first with your local news.
Be part of it.