Weather Alerts For Highlands Ranch, CO

# HEADLINE -------------------- FREEZE WATCH REMAINS IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY MORNING # DETAILS -------------------- WHAT Sub-freezing temperatures as low as 30 possible. WHERE The I-25 Urban Corridor and all of the plains of northeast Colorado. WHEN From late Monday night through early Tuesday morning. IMPACTS Frost and freeze conditions could kill crops and other sensitive vegetation. ISSUED AT Sunday, May 17, 2026 at 10:59 PM MDT ISSUED BY National Weather Service Denver CO HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Take steps now to protect tender plants from the cold. # AREAS AFFECTED -------------------- Phillips County, Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County, Central and East Adams and Arapahoe Counties, Central and South Weld County, Elbert/Central and East Douglas Counties Above 6000 Feet, Larimer County Below 6000 Feet/Northwest Weld County, Logan County, Morgan County, North and Northeast Elbert County Below 6000 Feet/North Lincoln County, North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County, Northeast Weld County, Sedgwick County, Southeast Elbert County Below 6000 Feet/South Lincoln County, Washington County Including the cities of Akron, Wiggins, Sedgwick, Deer Trail, Littleton, Parker, Goodrich, Longmont, Holyoke, Larkspur, Fort Lupton, Matheson, Last Chance, Stoneham, Elbert, Amherst, Bennett, Karval, Fondis, Briggsdale, Highlands Ranch, Golden, Fort Collins, Grover, Arvada, Hereford, Forder, Limon, Roggen, Raymer, Fort Morgan, Julesburg, Peetz, Leader, Otis, Haxtun, Brush, Hugo, Agate, Brighton, Aurora, Nunn, Denver International Airport, City of Denver, Punkin Center, Cope, Loveland, Castle Rock, Byers, Eaton, Merino, Greeley, Pawnee Buttes, Sterling, Ovid, Lakewood, Kiowa, Boulder, Kutch, and Crook