We could well see our warmest day of the year so far on Saturday.
As very warm air drifts in from North Africa and the Continent, temperatures could reach 26C or more.
As this very warm air clashes with cool, (moist air from a Low Pressure system to the west of us in the Atlantic), it'll feel increasingly muggy and close through the south and east. For the rest of us, it will feel a little more comfortable.
With the warmth and humidity, lively conditions will be triggered - intense downpours and thunderstorms will break out with a risk of hail and potentially local flooding as tropical-like downpours develop.