IT'S time to look out the brolly as Glasgow gets set to be battered by dreich weather tomorrow. 

The Met Office has issued a yellow weather warning for heavy rain and floods across parts of Scotland.

Nearly half of one month's rainfall will batter the country in yet another spell of bad weather.

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It comes after Scotland was hit with thunderstorms on Friday following scorching temperatures. 

Glasgow has avoided the yellow warning area by the skin of its teeth but forecasters are still predicting heavy rains will put a dampener on things throughout the day. 

On Tuesday, there is as high as a 90 per cent chance the heavens will open with temperatures still reaching around 15 degrees. 

Heavy rain is expected to cause flooding of a 'few homes and businesses' across the west of the country until midnight on Tuesday, August 4.

Some 40-60 mm of rain is expected, with as much as 80-100 mm on higher ground.

Typically, 120mm on average falls in August.

The Met Office warned bus and train services will be affected by floods from 6am on Tuesday, with spray on roads making journey times longer.

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A statement from the Met Office read: "A spell of persistent and heavy rain is expected to affect western Scotland during Tuesday.

"Widespread rainfall totals of 40-60 mm are expected with as much as 80-100 mm over some high ground exposed to the strong south-westerly winds.

"Much of this rainfall will fall in around 12 hours during the middle part of the day."