Normal high/ low temperatures for May 18-May 25 (high/low) Redding 82/55, Chico 82/52, Quincy 74/38, Chester 69/36, Susanville 72/40, Grass Valley 72/46, Weaverville 78/41, Mt. Shasta 69/41, Yreka 74/41, Alturas 70/36
A week ago we were talking about cooler and showers. Now it looks like we going into a typical summer weather pattern. The high pressure area over the weather U.S. will get stronger and by mid week there will be large high pressure area over the western U.S. (see map below). Today through Friday skies will be clear. Temperatures will be warming with high temperatures in the north end of the valley in upper 90s to 105 Tuesday through Thursday. Light to moderate north winds will occur in some areas today and Sunday with light winds Monday throuigh Thursday.
The map below shows a low pressure area off the Southern California coast. This low is moving northward and will move across Northern California next weekend. Friday we will see increasing clouds with temperature cooling a few degrees. Saturday and Sunday will be partly cloudy with showers and thunderstorms mainly over the mountains.
The Old Forecaster