Redding, CA - A very topsy-turvy week of weather started with major heat and ended with widespread storms. The weekend offers some relief from the extreme weather. On Saturday, a few storm cells are still likely to pop up in Siskiyou, Modoc, and Lassen Counties, but dry lightning can lead to new fire starts. Outside of the mountains, skies look generally clear and temperatures rise. Sunday is expected to be calm with plenty of sunshine, marking the official start of summer.