The storm battered the county with winds of up to 80mph on Friday, disrupting roads, railways, schools and more.
An amber weather warning issued by the Met Office came into effect at midnight and will remain in force until 9pm.
Pictures taken across Lancashire show the scale of the damage caused by the strong winds.
Take a look at our gallery below:
5. Damage caused by Storm Éowyn
The roofing was reportedly blown off Blackpool Council’s four-storey Municipal Buildings and Jobcentre, where staff were evacuated after it was deemed unsafe for them to work at the offices. | Contributed
7. Damage caused by Storm Éowyn
Video taken in Blackpool showed large sections of roofing smashed on the pavements and blocking roads. | Contributed
8. Damage caused by Storm Éowyn
Forecasters warned that damage to buildings and homes could occur, with roofs blown off and power lines brought down. | Joanne Hughes