As the unofficial queen of plateaus, I can tell you this: Ditch the Scale. Put it outside in the garage and leave it there for a few weeks. Switch up your routine somewhat. Do more weights, do less cardio or vice versa. Eat breakfast for dinner. Just do something different.
Do not get discouraged. I was on a plateau that last nearly six months (yes, six months) but I kept at it. When it broke, it broke quickly. I lost 4 pounds in one week and an additional six pounds in the following 4 weeks. Frustrating yes, but don't give up. Patience wins this race.