Portland, Oregon – A colder-than-normal weather pattern is expected to take hold across Oregon heading into Valentine’s Day weekend, bringing sustained below-normal temperatures and an increased risk for icy roads and cold-related disruptions from Saturday through midweek. Even light precipitation could become impactful under this prolonged cold setup.
According to the National Weather Service Climate Prediction Center, Oregon is favored for below-normal temperatures during the February 14–18 period. This pattern supports persistent cold air across the Pacific Northwest, raising concerns for freezing conditions overnight and slow daytime warming, particularly in valleys west of the Cascades.
In western Oregon, including Portland, Salem, Eugene, and Corvallis, daytime highs are expected to run below seasonal averages, while overnight lows dip cold enough for frost and patchy ice. Elevated roadways along I-5, I-205, Highway 217, and major bridges are most vulnerable during the early morning commute, especially if moisture lingers on road surfaces.
Across central and eastern Oregon, including Bend, Redmond, Pendleton, and La Grande, colder overnight temperatures are likely to remain locked in for several days. Any passing systems could produce light snow or freezing conditions on highways such as US-97, I-84, and Highway 26, creating slick travel during nighttime and early morning hours.
In the Cascades, prolonged cold will support ongoing snowpack and icy conditions over mountain passes, including Santiam Pass, Willamette Pass, and Government Camp. ODOT crews are expected to remain in winter operations as the cold persists.
Utilities are monitoring increased energy demand tied to the extended cold. Residents are encouraged to protect exposed pipes, ensure heating systems are functioning properly, and limit non-essential travel during the coldest overnight periods.
This below-normal temperature pattern is expected to persist into midweek. Additional advisories may be issued as confidence increases on precipitation timing, and residents should stay alert for updates, particularly during overnight and early morning hours when cold-related hazards are most likely.
