PORTLAND, Ore. — A cooler-than-normal weather pattern is expected to persist across Oregon from Valentine’s Day through Feb. 20, bringing periodic chances for rain and snow while keeping temperatures near or slightly below seasonal averages.
In western Oregon, including Portland, daytime highs are forecast to hover in the upper 30s to low 40s through much of the period. Overnight lows will frequently dip into the low to mid-30s, creating the potential for rain to mix with snow during overnight and early morning hours, especially during heavier precipitation.
The Coast Range and Cascade foothills will see a higher likelihood of snow, with light accumulations possible as multiple weak systems move inland from the Pacific. Snow levels may fluctuate, occasionally dropping low enough to impact higher-elevation communities and mountain travel routes. Cascade passes could experience intermittent winter driving conditions, particularly during overnight periods.
Central and eastern Oregon will remain colder overall, with highs largely in the 20s and lower 30s and lows falling into the teens. Snow chances will be more consistent east of the Cascades, where colder air will support primarily snow rather than mixed precipitation.
Winds are expected to remain mostly light, though brief breezy periods could accompany passing systems. Cloud cover will limit daytime warming, reinforcing the cool and unsettled pattern.
Looking ahead, forecast guidance does not show a strong warming trend developing through the end of the period. Residents are encouraged to monitor local forecasts and plan for winter-like conditions to continue across much of Oregon as mid-February progresses.
