Thunderstorms are expected to continue into Sunday and spread over eastern Oregon. These storms are likely to produce more rain Sunday and may provide minor wildfire hazard relief. Cloud cover and an approaching upper level trough will lower temperatures somewhat into the low- to mid-90s on the west side of the Cascades. Most areas east of the Cascades will remain near 100 degrees.
On Monday, an upper level ridge should flatten some, with thunderstorms diminishing and confined to east of the Cascades. Thunderstorms are now forecast to diminish later next week as the upper level ridge flattens and keeps upper level winds more westerly than southerly. However, temperatures will remain hot through next week - in the 90 to 100 degree range.
See links below for the latest fire weather watches and warnings:
Regional Watches and Warnings map - http://www.wrh.noaa.gov/
National Weather Service Fire Weather Home Pages:
Portland - http://www.wrh.noaa.gov/firewx/?wfo=pqr
Pendleton - http://www.wrh.noaa.gov/firewx/?wfo=pdt
Medford - http://www.wrh.noaa.gov/firewx/?wfo=mfr