More than 800 people are employed at the 200-acre Rolls-Royce site at Ansty, near Coventry.
The factory handles the refit and repair of their aeroplane and marine engines. The company's Trent series of civil aviation engines components are also manufactured on the site.
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Any remaining showers will soon clear leaving a dry night.
Early evening sunshine in places but, overnight, mist and low clod will move back in from the east, giving fog and drizzle in places.
Visibility will be poor again overnight and tomorrow with mist and fog rolling in from the North Sea. However it is also warming up!