Freeze Warning

Locations Affected

Denver, CO ∙ Aurora, CO ∙ Lakewood, CO ∙ Fort Collins, CO ∙ Thornton, CO ∙ Westminster, CO ∙ Boulder, CO ∙ Arvada, CO ∙ Centennial, CO ∙ Longmont, CO

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Denver CO 1227 PM MDT Mon Oct 27 2025 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 10 AM MDT TUESDAY... ...FREEZE WARNING IN EFFECT FROM 10 PM TUESDAY TO 10 AM MDT WEDNESDAY... * WHAT...Low temperature Tuesday morning will be between 24 and 32 degrees. On Wednesday morning, lows will be between 18 and 26 degrees. * WHERE...Fort Collins, Boulder and the western suburbs of Denver, Denver, and Castle Rock. * WHEN...For the first Freeze Warning, from 2 AM to 10 AM MDT Tuesday. For the second Freeze Warning, from 10 PM Tuesday to 10 AM MDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.

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