Hot temperatures can be expected in Portland today and Wednesday, then a cold front will move across the area on Thursday, bringing a chance of showers and thunderstorms.
Cooler temperatures will follow the front on Friday, and continue through the weekend. There will be a low pressure system moving across the Pacific and approaching Portland late Saturday and Sunday, but with limited moisture for this system to work with, only an increase in clouds is expected on Sunday. Each day is expected to have high temperatures in the lower to mid 80s, with a southwest wind at 5 to 10 mph. It should be a great weekend to be at the track.