Weather maps have turned red in three counties across England with the potential arrival of a mini heatwaveThe mercury could crank up a notch in a matter of hoursThe mercury could crank up a notch in a matter of hours(Image: PA)

Weather maps have revealed that three counties in England could roast in a mini heatwave arriving in hours.

Although things appear to have cooled off in recent days, the temperature could crank up a notch next week.

According to WX Charts, Merseyside, Bristol and Gloucestershire could experience highs of 30C arriving on Monday, August 25.

READ MORE: 18 places set to dodge this week’s 32C heatwave as UK bakes

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Other parts of the country including the West Midlands could see the mercury reach 29C.

Meanwhile, in its weather outlook from Sunday (August 24) to Tuesday (August 26), the Met Office says there could be “increase amounts of sunshine”.

The temperature could reach 30C in EnglandThe temperature could reach 30C in England(Image: WX Charts )

The Met Office said: “Settled on Sunday and Monday with increasing amounts of warm sunshine.

“Breezier in the west on Tuesday with scattered showers spreading east through the day.

“Very warm in the east.”

Look further ahead in the month, the Met Office has forecast both dry periods and more wet weather too with showers.

In its long-range forecast from August 27 to September 5, the Met Office said: “Low pressure is expected to dominate this forecast period, with bands of rain and showers, perhaps slow moving at times which could bring some fairly wet days for some places.

“That being said there will be a good deal of dry weather in between showers and frontal bands of rain.

“Winds could be strong at times, especially around coasts as low pressure systems move through.

“As has been the case over the last few days, and normal for the time of year, confidence in details is lower than average.

“This is due to the activity in the tropical Atlantic, and how any systems move into mid-latitudes to help develop further low pressure systems which may affect the UK.

“Temperatures should be around average, still feeling pleasant enough during drier spells.”