Thunderstorms and cooler temperatures are expected to visit the Texoma area this weekend, thanks to a fall weather system making its way through the region.

The National Weather Service forecasts an 80 to 90 percent chance that thunderstorms will develop in the area late Saturday and a 15 to 30 percent chance for severe weather. Meteorologist Matt Bishop of the National Weather Service’s Fort Worth branch said the arrival of the fall season is often accompanied by storms.

“We’ll have a round of showers and thunderstorms starting around sunset and continuing until after midnight for Grayson County,” Bishop said of Saturday’s forecast. “The south winds that we’re currently experiencing will shift around to the north, probably at about 15 to 20 miles per hour, nothing too strong.”

Bishop explained that the weather system is the result of an upper level trough descending from the northwest. In addition to the storms, Bishop said the front is expected to bring considerably cooler temperatures. Saturday’s high is expected to reach the lower 80s and the cold front will send overnight temperatures down into the mid or upper 40s. Sunday will likely see a high in the low 70s.

“It should be quite a bit cooler behind the front,” Bishop said.

Temperatures are expected to remain relatively stable throughout next week.

“We do get another front on Tuesday,” Bishop said. “There’s not much in the way of precipitation associated with that, but it will drop the temperatures some more. So, by Tuesday night you’ll see lows in the mid 40s and highs Tuesday and Wednesday around 70.”

The National Weather Service said the next best chance for storms or showers will likely be Friday or Saturday.