High pressure is the weather pattern through the week which means mild, sunny and quiet weather for most of the region, with valley fog and low clouds. The inversion will continue to strengthen the next two days which means less sunshine, cooler temperatures and deteriorating air quality for west side valleys. The densest fog will be in the Rogue and Illinois Valleys and Umpqua Basin which is also where the coolest temperatures will be. Areas that see sunshine will climb into the 40s while areas that don’t see the sunshine temperatures will struggle to climb out of the mid-30s.
A splitting storm will move in late Friday which should be enough to mix up the atmosphere enough to clear out the valley fog and improve air quality, though it will not bring us any much needed rain. No rain is in the forecast through the end of the year which means a record breaking dry year for many cities in our viewing area including Medford, Klamath Falls and Mt Shasta and one of the driest years on record for Bandon and Yreka.
Thank you for logging on and have a Merry Christmas!
Meteorologist Megan Parry