 A high near 91 at a heat index value as high as 100. West wind 5 to 10 miles per hour. Chance of precipitation 90%. New rainfall between a tenth and a quarter of an inch, except higher amounts possible in thunderstorms. Tonight, clear low around 68 and a northeast wind 5 to 10 miles per hour. Tomorrow will be sunny. A high near 91 and an east wind 5 to 10 miles per hour. Outside the Northwest Arkansas National Airport at last checked,