Johnson County Weather ForecastUnited StatesNEJohnson County6790TecumsehMostly Sunny6791SterlingMostly Sunny6791CookMostly Sunny6891Crab OrchardSlight Chance ThunderstormsCookCrab OrchardElk CreekHeusman ReservoirHickory Ridge State Wildlife Management AreaMittleberg ReservoirOsage State Wildlife Management AreaSt MarySterlingTecumsehTecumseh City ParkTecumseh Municipal AirportVesta