 Cooler air finally arrives Thursday, Friday. We're into the 80s, but repeat rain chances will start throughout the weekend, potentially into early next week, and temperatures staying near average toward 90. 92 in Reston, 95 in Northeast, and 93 in Dale City. The latest forecast is brought to you by Gutter Helmet. Protect your home from water damage. Eliminate your gutter woes with Gutter Helmet. Visit gutterhelmet.com.