For more information on area National Forest hiking, see the Forest Service's Roosevelt National Forest site. The weather in the town of Estes Park and the Estes Valley tends to be milder and without the temperature and weather extremes seen at the higher elevations in Rocky Mountain National Park. Current weather conditions in Estes Park, courtesy of Daylight Software . In the higher elevations of RMNP, summer generally brings sunny mornings, with possible afternoon thunderstorms and cool nights. In winter, mountain weather ranges from cool conditions to blizzard conditions with extreme temperature variations.
Weather conditions can change very quickly in mountainous areas and snow is possible year round.
Keep in mind that in this area, temperatures generally go down about 2-3 degrees per 1000 foot gain in elevation. Colorado Climate Center. Based on a table from the Estes Park Community Profile . I'm not much of a camper myself, but here are some resources for you. There's some good info on camping at Mike Dallin's RMNP site .