July 11, 2017 – Clear skies across interior NorCal with very weak upper trough along the West Coast. Current temperatures are slightly cooler across much of the area compared to 24 hours ago and generally range from the 40s in the mountain valleys to the 60s to mid 70s in the Central Valley.
Sunny and dry weather continues with temperatures around average through mid-week. The Delta Breeze will bring minimal relief to the Delta and nearby portions of the Valley.
Very minimal thunderstorm chances south of Lake Tahoe as monsoonal moisture will find it difficult to make it further north than central California.
Extended discussion (Saturday through Tuesday)
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The strong Four Corners upper height center drifts westward bringing heat back to NorCal. Widespread 102 to 107 expected in the Valley and 80s in the higher elevations with a moderate heat risk for the weekend. A northeast Pacific trough will drop toward the Pacific NW early next week resulting in some cooling. A threat of late afternoon t-storms may develop along the Sierra crest through the extended, generally southward of Lake Tahoe.