While portions of northern California remain under a heat advisory until Thursday evening, a cool down is on the horizon. Initially, temperatures looked to be dropping by only a few degrees, but more recent model runs are indicating afternoon highs ten to fifteen degrees cooler by Sunday.
It’s due to a trough moving through the region this weekend. The ridge of high pressure that has dominated our weather pattern over the past several days will be weakening, which will allow temperatures to fall a bit through the end of the work week. As the trough moves through this weekend, though, temperatures will decline even more. The storm system brings a few rain chances Sunday and Monday, with isolated storms possible along and east of the Cascades and northern California.
By the middle of next week, temperatures will eventually begin an uphill climb. We aren’t talking triple digits, just 80′s and 90′s in west side valleys and northern California. Mostly sunny skies return to the area by Wednesday as well.
Chief Meteorologist Kate McKenna