Strength training is a vital part of every exercise routine, and without it, as much as 25% of your weight loss can come from lean muscle mass, leading to what is unfondly known as "skinny fat", where you weigh little but have a high body fat percentage.
And don't worry about "toning", either, do actual strength training, with challenging weights. Don't wait until you lose more weight either. There are benefits to strength training at all weights, and it makes the process easier in the long run (helping you lose those precious inches!)
Strength training helps you look and feel better in the skin you're in. Don't wait!
Here's a great article that will help you (don't listen to the myths!) www.sparkpeople.com/resource/fitness_artic