Northern Virginia is set to experience a significant heat wave this weekend, with temperatures climbing into the 90s. According to AccuWeather, temperatures will be 20 to 25 degrees higher than those recorded during the last weekend of May. The heat wave will last for four days, starting Thursday, with highs reaching 94 degrees on Saturday before thunderstorms bring some relief. The National Weather Service forecasts a high of 88 degrees on Thursday, followed by 92 degrees on Friday. The area is also under a drought watch, affecting nearly six million residents, which encourages water conservation. Clark Mercer, Executive Director of the Metropolitan Washington Council of Governments, noted that this is one of the driest periods the region has faced in two decades, urging the public to adopt water-saving practices. Cooler temperatures are expected on Monday, with a high of 84 degrees, providing a much-needed break from the heat.