Cool Morning Temps Linger Across Southern Oregon; Warmer Weather on the Way

Medford, Oregon- Showers continued across southwest Oregon Sunday morning as an upper-level trough and low-pressure system centered over Idaho influenced the region’s weather. According to the National Weather Service, the low is expected to gradually shift northeastward throughout the day, allowing precipitation to taper off by the afternoon.

Though temperatures are forecast to trend warmer than the past few days, they will remain slightly below seasonal averages. As skies begin to clear and winds lighten, overnight and early morning temperatures are expected to dip sharply. Areas east of the Cascades, particularly in northern Klamath and northern Lake counties, may experience lows in the lower 30s.

A significant shift is expected Monday and Tuesday as high pressure builds offshore and upper-level heights increase. This will bring a warming and drying trend to the region. Highs on Monday will reach near or slightly above normal, with a further increase by Tuesday. Forecasts call for highs in the 80s east of the Cascades and in the Umpqua Basin, while valleys in Jackson, Josephine, and western to central Siskiyou counties could see temperatures climb into the upper 80s to low 90s.

A weak disturbance is expected to pass north of the area Tuesday night into Wednesday. While most areas will remain warm and dry, there’s a small chance (5–15%) of showers along the Coos and Douglas County coasts.

From Wednesday evening through Friday, a weak trough is projected to move into the region, bringing a slight increase in shower activity (5–20%), mainly for the coast and Umpqua Basin. The National Blend of Models also suggests a very low chance (5%) of thunderstorms developing east of the Cascades, though forecasters note that the timing and strength of the system will play a key role in storm development.

NWS Meteorologists say they will continue to monitor the mid-week system and provide updates as conditions evolve.