Temperatures might be hitting the upper-90s in some parts of Colorado on Thursday (looking at you, Grand Junction), but by the time the weekend hits, a major shift in weather is expected to occur. Not only could a drop in temperatures and incoming moisture help to dampen some of the fires that are raging around the Centennial State, it might also mean a little bit of snow on some high-elevation trails, too.

This won’t be the first time snow has fallen in the Centennial State this summer – light snow was seen capping some peaks on a 500-mile one-day road trip I took around the mountains last weekend. That said, this snow might mean those hitting Colorado’s fourteeners should mix-up their summer hiking pack quite a bit.

As far as the state’s fourteeners go, it should be a mixed bag of rain on some peaks and snow on others. Either way, expect wet conditions. Peaks that are showing a chance of snowfall per the Mountain-Forecast.com report show that snow falls on Sunday, with Pikes Peak and Mount Sneffels each expected to get about three inches on that day at time of publishing.

Meanwhile, most peaks that won’t be getting snow should get plenty of rain throughout the weekend. Expect hiking conditions to be wet, with thunderstorms possible, as well. Any early start from the trailhead will be key into dodging some of this atypical August weather.

Related impacts should be similar to those expected when summer mountain storms blow through – colder temperatures and slick rocks will be key concerns. While it’s likely that snow will melt relatively quickly, wet summer snow can mean an increased chance of injuries related to slips on rugged terrain.

If you’re planning to hike a fourteener this weekend, be highly aware of the forecast. Saturday looks like a better day for hiking compared to Sunday, but both days could bring inclement weather.

Pack waterproof layers and something warm. Gloves may be nice to have, too.

Learn more about the 10 essentials that should be brought along for any hike here.