7 Ways to Stay Motivated to Run

Pick one race that you run every year. You'll look forward to training for and running in the race, and you'll stay motivated to keep your "streak" alive. Try to get some friends or family members to do the race with you, so you can all make it an annual event.
Also see: How to Find Local Road Races

Keep a bag packed with running clothes and shoes in your car. You'll be prepared to take advantage of any unexpected opportunity to run. Even if you can only run for 20 minutes, some running is better than no running, and it will help you maintain your running habit.

It's always motivating and exciting to watch someone who's new to running get interested in and enthused about the sport. If you know someone who wants to run, but doesn't know how to get started, offer your assistance. You can provide him or her with some basic training advice and gear knowledge and, more importantly, much-needed encouragement. Consider going on some runs with this person. Although running with him or her may not be challenging physically for you, seeing the sport through a new runner's eyes will help renew your motivation.
Also see: 9 Ways to Help Beginner Runners

Whenever I run in the morning, I always feel like I gained a couple of hours during the day. I love not feeling pressure to run in the evening, since I already got my miles done in the morning. Finding time to run in the evening always get tough when work and home responsibilities start popping up. Runners who run early in the day are more consistent with their running than those who try to do it later on.
Also see: How to Find More Time to Run

Giving yourself breaks in training is important for staying motivated and preventing injuries. For healthy, consistent training, your body needs regular recovery periods. Build rest days into your weekly running schedule, and plan for "recovery weeks" (when you decrease your overall weekly mileage) every four weeks. Also, make sure to work cross-training, such as walking, biking, or swimming, into your training schedule, so you don't get burned out (mentally and physically) from running every day.