Next time you awake to see that it's raining outside, don't do a little dance of joy -- you can still run when it's raining. You'll need to make a few changes to your running MO, but don't let a little rain stop you from your healthy habits.

Here are some suggestions from Fitsugar:

• Wear a water-repellent top layer, like a rain coat, so the water doesn't weight you down
• Avoid cotton shorts and cotton socks -- neither are very comfortable when wet
• Waterproof your iPod with a zipper-top plastic baggy
  
• Wear old running shoes, unless yours are waterproof
• Wear sunglasses -- you might look silly but it will keep the water from your eyes
• Don't run too close to the road -- you might get splashed by a car!

Of course, if there's lightening, stay at home and enjoy a day off from the fitness routine.