 Weather forecast for northwest Arkansas and the rest of Kern country will be partly sunny, then gradually becoming sunny with a high near 94 and a heat index value as high as 102. South wind 10 to 15 miles per hour, gusting as high as 20 miles per hour. Mostly clear, low around 76. A south wind 10 to 15 miles per hour, gusting as high as 20 miles per hour. And tomorrow, 30% chance of showers and thunderstorms, mainly after 1 p.m.