Weather
Southwest Virginia Weather Alert: Frost, Then 60° Oct 18-19
Blacksburg, VA – Frost is expected to develop across the Blacksburg area early Sunday, October 18, as temperatures fall near 33 degrees following a sharp weekend cooldown. The National Weather Service
By Avery Collins · 2026-10-16T08:05:28.298Z
Blacksburg, VA – Frost is expected to develop across the Blacksburg area early Sunday, October 18, as temperatures fall near 33 degrees following a sharp weekend cooldown. The National Weather Service forecast specifically identifies areas of frost before 10 a.m. Sunday, creating potential concerns for sensitive outdoor plants and gardens across portions of Montgomery County. The colder weather follows Friday's projected high near 79 degrees, with a substantial temperature change unfolding before conditions gradually improve early next week.
According to the National Weather Service in Blacksburg, temperatures are expected to fall to approximately 33 degrees Saturday night, with patchy frost possible after 2 a.m. Areas of frost are then forecast before 10 a.m. Sunday, followed by sunshine and an afternoon high near 55 degrees. The forecast also calls for another chilly night Sunday, with temperatures dropping near 34 degrees before a gradual warming trend begins Monday.
Sunday Morning Frost Could Threaten Sensitive Plants The approaching cold air will create one of the more significant weather changes in the supplied forecast, especially for residents maintaining gardens and outdoor vegetation. Temperatures near 33 degrees can support frost formation when surface conditions are favorable, even when the measured air temperature remains slightly above freezing. Sensitive plants, including late season vegetables and flowering annuals, could experience damage if frost develops on exposed surfaces.
The National Weather Service identifies patchy frost beginning after 2 a.m. Sunday, with areas of frost continuing into the morning. The forecast does not establish widespread freezing temperatures or a confirmed Freeze Warning for Blacksburg. However, residents with vulnerable outdoor plants may want to consider protective coverings Saturday evening and remove them after temperatures rise Sunday morning.
The temperature change will be particularly noticeable compared with Friday's expected warmth. Blacksburg is forecast to reach approximately 79 degrees Friday before dropping to a high near 52 degrees Saturday. By early Sunday, the projected low near 33 degrees represents a 46 degree difference from Friday's afternoon high, occurring over roughly two days rather than during a single rapid temperature plunge.
Cold Weekend Follows Rain and Gusty Winds The transition begins Saturday as showers become less likely during the morning and cooler air settles across the New River Valley. The forecast calls for a 30% chance of showers, mainly before 7 a.m., followed by mostly sunny skies and north winds of 9 to 11 mph. Gusts could reach 22 mph, adding to the noticeably cooler conditions throughout the afternoon.
Drivers traveling along U.S. Route 460, Interstate 81 and nearby mountain roads may encounter wet pavement early Saturday where showers occur. Sunday morning's colder temperatures could also produce frost on exposed grassy surfaces and vehicles. However, the supplied forecast does not predict widespread roadway icing, snow accumulation or weather related highway closures.
Residents planning early Sunday activities, including outdoor recreation around Blacksburg, Christiansburg and surrounding Montgomery County communities, should prepare for temperatures in the lower 30s. Warmer clothing may be necessary before sunrise, although sunshine should make conditions more comfortable as temperatures rise through the morning.
Sunshine and Warmer Temperatures Return Next Week The colder pattern begins easing Monday, October 19, when mostly sunny skies and an afternoon high near 60 degrees are expected. Monday night should remain mostly clear, with temperatures falling to approximately 38 degrees. Although mornings will continue feeling chilly, the forecast indicates a gradual recovery in afternoon temperatures.
Tuesday brings additional warming, with sunshine and a high near 65 degrees, followed by a nighttime low around 41. Wednesday should remain sunny with a high near 66, while Thursday is forecast to reach approximately 64 degrees. No additional frost is specifically identified in the supplied forecast after Sunday morning.
For residents across the New River Valley, the most important preparation window is Saturday evening into Sunday morning, when temperatures will be cold enough for frost to threaten sensitive outdoor vegetation.
Are you planning to cover outdoor plants before Sunday morning's expected frost?
Five Day Weather Outlook Friday 10/16: Patchy morning fog gives way to increasing clouds, with a high near 79 degrees and a 60% chance of showers mainly after 5 p.m. Friday night brings a 30% shower chance and a low near 45 degrees.
Saturday 10/17: A 30% chance of early showers is expected before mostly sunny skies develop, with a high near 52 degrees. North winds could gust to 22 mph before temperatures fall near 33 degrees Saturday night, allowing patchy frost after 2 a.m.
Sunday 10/18: Areas of frost are expected before 10 a.m., followed by sunny skies and a high near 55 degrees. Mostly clear conditions continue Sunday night, with temperatures falling to approximately 34 degrees.
Monday 10/19: Mostly sunny skies and a high near 60 degrees are expected as afternoon temperatures begin recovering from the weekend cooldown. Mostly clear skies follow Monday night, with a low around 38 degrees.
Tuesday 10/20: Sunny skies and a high near 65 degrees bring more comfortable afternoon conditions across Blacksburg and surrounding communities. Mostly clear weather is expected Tuesday night, with temperatures falling near 41 degrees.
Extended Outlook Wednesday, October 21, is forecast to be sunny with a high near 66 degrees and a nighttime low around 42. Thursday, October 22, should remain sunny with a high near 64 degrees.