The best times to visit the Colorado Plateau is during the late spring and early fall. Visitors to Grand Canyon National Park, Arches National Park and Canyonlands National Park can find more information about seasonal weather on their websites.
- Arches: http://www.nps.gov/arch/index.htm
- Canyonlands: http://www.nps.gov/cany/index.htm
- Grand Canyon: http://www.nps.gov/grca/index.htm
Temperatures can vary wildly, so make sure to pack layers. With any outdoor adventure, make sure to have sufficient water and the right clothing.