The Met Office has warned of thunderstorms in Slough today (Sunday).
The yellow weather warning means sudden flooding on roads could lead to difficult driving conditions and some closures.
There is a slight chance that power cuts could occur as well as delays and cancellations to train and bus services The weather forecaster warned of some damage to trees and buildings, such as fallen branches and tiles blown from roofs.
Heavy, blustery rain should be expected this afternoon though it will stay mild at around 13C.
Tonight will be windy with isolated showers followed by a bright and breezy Monday, with occasional showers continuing.
Widespread rain should start om Tuesday, before becoming colder and brighter with a keen wind.
The Met Office said it should be frosty and largely sunny Wednesday.