Avoid the low ground. If it starts raining, you'll end up in a nice, chilly puddle. If rain or snow is expected, find a covering under which to set up camp. You may want to add some brush, leaves, or scrubbage under your tent to keep you off the cold ground. Make sure your tent is waterproofed and add a cover.
Most tents come with a rain cover.
Make sure you keep your tent well ventilated or dew will form on the inside of the walls. PageWise makes no representations about the content published on this site. PageWise hereby disclaims all warranties and conditions with regard to this information, and user agrees that all such use is at its own risk.