A warning of thunderstorms has been issued for Preston and Lancashire.
The Met Office has a yellow warning in force from midnight on Sunday (27 May) through to the early hours of Bank Holiday Monday (28 May).
Some downpours are expected in and around the city.
The worst of the rain is not expected to hit Preston, staying in the Midlands.
It states there is a risk of lightning strikes during the period of intense rain.
Read more: Bank Holiday weather forecast with added rain
Bank Holiday Monday itself is expected to be settled and dry for the most part with highs of 24 degrees during the afternoon.