SUN PRAIRIE, Wis. (WMTV) – Jimmy the Groundhog predicts an early spring in his annual Groundhog Day winter weather forecast Friday morning in Sun Prairie. The 76th Annual Groundhog Day Prognostication was held in Downtown Sun Prairie’s Cannery Square starting with a ceremony beginning at 6:50 a.m. with the Prognostication at sunrise at 7:11 a.m.