Near record-high temperatures this weekend will give way to highs in the 70s in the Tri-Cities early next week, according to the National Weather Service.
High pressure that has provided fair and unusually warm conditions in recent days will weaken, allowing a low pressure system to move into the region late Sunday and Monday, according to the weather service.
The low pressure system should bring temperatures that are around 15 degrees or more cooler. Highs today and Sunday should be about 94 to 96 degrees in the Tri-Cities. But the high should drop to about 81 degrees Monday and then into the upper 70s through at least Thursday in the Tri-Cities.
The weather service also is predicting a 30 percent chance of showers and thunderstorms after 11 p.m. Sunday.