Portland, OR – Areas of western Oregon, including the Willamette Valley and Cascade foothills, are at risk for frost tonight as temperatures drop to 36°F or lower, according to the National Weather Service. Gardeners and homeowners are urged to protect sensitive outdoor plants, as the cold conditions are conducive to frost formation, particularly in the upper Hood River Valley and surrounding areas.
The National Weather Service reports that the most likely regions to experience frost are located in the northern and eastern portions of the Willamette Valley, including the Cascade foothills and the upper Hood River Valley. Areas such as Vernonia, Yacolt, and parts of the southern Willamette Valley face a 50% chance or greater of reaching the critical 36°F mark by midnight.
In addition to the already chilly conditions, the risk of frost extends to cities like Corvallis, Eugene, and Albany, with probabilities ranging from 20% to 40%. Residents in these areas should prepare for potential cold snaps overnight that could affect early-season plants and gardens.
With the threat of frost tonight, the National Weather Service recommends covering vulnerable plants with frost cloths or blankets and ensuring that any tender vegetation is protected from the cold. Gardeners can also consider bringing potted plants indoors or using other frost protection methods to minimize damage.
This frost advisory is expected to last through the early morning hours. Stay alert for further updates from local weather services, as temperatures may dip further, impacting plant life and outdoor activities.




