Weather
Colorado Weather Alert: Freeze Risk Before 77° Warmup Oct 16-17
Denver, CO – Freezing temperatures could spread across Colorado's Front Range urban corridor and eastern plains early Friday, threatening sensitive vegetation and unprotected outdoor plumbing before a
By Evan Cross · 2026-10-15T09:09:03.279Z
Denver, CO – Freezing temperatures could spread across Colorado's Front Range urban corridor and eastern plains early Friday, threatening sensitive vegetation and unprotected outdoor plumbing before a dramatic weekend warmup. The National Weather Service has issued a Freeze Watch from late Thursday night through Friday morning, with temperatures potentially falling between 27 and 33 degrees across the affected region. The coldest conditions could arrive before sunrise Friday, giving residents a limited window to protect vulnerable plants and outdoor equipment.
According to the National Weather Service in Denver/Boulder, the Freeze Watch covers the Front Range urban corridor and eastern plains, including Denver, Boulder, Fort Collins, Greeley, Lakewood, Arvada, Aurora and surrounding communities. The watch is scheduled from midnight until 9 a.m. MDT Friday, Oct. 16. Forecasters warn that frost and freezing conditions could kill crops, damage sensitive vegetation and potentially affect unprotected outdoor plumbing.
Freeze Watch Covers Denver, Front Range and Eastern Plains The potential freeze extends beyond Denver into portions of Larimer, Weld, Boulder, Jefferson, Adams, Arapahoe, Douglas, Elbert, Morgan, Logan, Washington, Sedgwick and other northeastern Colorado counties. Communities including Brighton, Longmont, Castle Rock, Sterling, Fort Morgan and Akron are among those listed in the National Weather Service bulletin. Temperatures may vary considerably by location, with the coldest areas potentially dropping into the upper 20s.
The local Denver forecast calls for a low near 31 degrees Thursday night, placing the city close to or below the freezing threshold. Clearer skies and weakening winds could allow temperatures to fall more efficiently during the nighttime hours. However, the exact minimum temperature will depend on local conditions, and a Freeze Watch indicates that damaging freezing temperatures are possible rather than guaranteed.
Residents with gardens, potted plants or late season crops should consider moving sensitive vegetation indoors or covering it before temperatures fall. Outdoor hoses should be disconnected where necessary, and exposed plumbing may require protection in vulnerable locations. The National Weather Service specifically advises taking steps to protect tender plants from the cold.
Thursday Showers Give Way to Friday Morning Cold Before the potential freeze, Thursday will bring unsettled conditions to the Denver area. The National Weather Service expects a 50% chance of showers, mainly before noon, with cloudy skies gradually becoming mostly sunny and temperatures reaching approximately 54 degrees. North winds of 9 to 17 mph could gust to 28 mph, adding to the chilly conditions during the day.
The transition from Thursday's damp, breezy weather to colder nighttime temperatures could make Friday morning particularly uncomfortable for early commuters. Drivers traveling Interstate 25, Interstate 70 and Interstate 76 should remain aware of changing conditions, although the supplied forecast does not specifically predict icy roads or accumulating snow.
Friday afternoon will bring improving conditions as sunshine returns and temperatures climb to approximately 59 degrees. Winds should become lighter, with south southeast breezes around 5 mph during the morning before becoming calm later in the day.
Weekend Warmup Sends Temperatures Toward 77 Degrees The cold weather will be short lived. Saturday is expected to bring abundant sunshine and a high near 77 degrees, representing a 46 degree difference from Denver's projected Thursday night low of 31 degrees. That warming will occur over roughly a day and a half, rather than during a single afternoon.
Sunday will remain mostly sunny, with temperatures reaching approximately 73 degrees. The warmer pattern should continue into Monday and Tuesday, when highs are expected to reach the middle to upper 70s.
For Colorado residents, the most immediate concern remains the possibility of freezing temperatures early Friday. Protecting sensitive vegetation Thursday evening could prevent damage before the weekend's much warmer conditions arrive.
Are you preparing your plants or outdoor plumbing for Friday morning's potential freeze across the Front Range?
Five Day Weather Outlook Thursday 10/15: A 50% chance of showers, mainly before noon, will accompany cloudy skies gradually becoming mostly sunny and a high near 54 degrees. North winds could gust to 28 mph before temperatures fall to around 31 degrees Thursday night.
Friday 10/16: A Freeze Watch remains scheduled through 9 a.m., with early morning temperatures near 31 degrees in Denver and potentially colder conditions elsewhere. Sunshine will return during the afternoon, with a high near 59 degrees and a nighttime low around 34.
Saturday 10/17: Sunny skies and a high near 77 degrees will bring a significant warming trend following Friday morning's cold conditions. Saturday night will remain mostly clear, with temperatures falling to approximately 42 degrees.
Sunday 10/18: Mostly sunny skies and a high near 73 degrees will provide another mild afternoon across Denver. Partly cloudy conditions will develop Sunday night, with temperatures falling to around 42 degrees.
Monday 10/19: Sunny skies and a high near 74 degrees will continue the stretch of warmer weather across the Front Range. Mostly clear conditions are expected Monday night, with temperatures falling to approximately 46 degrees.
Extended Outlook: Oct. 20 21 Tuesday is expected to remain sunny, with a high near 77 degrees and mostly clear skies Tuesday night. Temperatures should fall to approximately 49 degrees before another sunny day Wednesday.
Wednesday's forecast calls for a high near 76 degrees, continuing the relatively mild pattern across Denver.