A collection of the most up to date trail conditions I can find for various areas around Colorado, Utah and Wyoming:

Colorado

Fort Collins: https://gisweb.fcgov.com/Html5Viewer/Index.html?viewer=trail%20status

Boulder/Lyons: https://bouldermountainbike.org/content/trails/conditions

Trestle Bike Park: https://www.trestlebikepark.com/trail-report.html

Crested Butte: https://crestedbuttemountainbike.com/trail-information/trail-report/

Durango: https://www.trails2000.org/trail-conditions/

Wyoming

Curt Gowdy: https://www.trailforks.com/region/curt-gowdy-state-park/status/

Utah

Moab: https://poisonspiderbicycles.com/moab-mtb-trail-conditions/