April 7, 2021 – Dry weather continues this week. High temperatures will be a little above average midweek and then about 10 to 15 degrees above average for the weekend and into early next week.
Discussion
A quiet pattern is in place with upper level ridging over the area with scattered high clouds, mainly over the northern Sacramento Valley and northern San Joaquin Valley. Temperatures in those areas are mild as a result, about 5 to 10 degrees warmer than this time yesterday. Onshore flow is bringing some cool air through the Delta with winds gusting to 25 mph at Fairfield. Some marine stratus are visible on IR satellite this morning, spreading into the western Delta. Fort Ord profiler shows the depth of the marine layer is fairly shallow at around 1500 feet, so not expecting a significant incursion of low clouds into the southern Sacramento Valley this morning. There could be some scattered marine stratus just west of Sacramento around daybreak, though.
Today expect slightly cooler afternoon temperatures than we saw on Tuesday as a trough to the north flattens the ridge. Highs in the Valley are expected to be in the low to mid 70s, in the upper 60s to around 70 in the Delta and foothills.
Temperatures gradually trend upwards through the rest of the week in dry northwest flow as the upper level ridge rebuilds. Valley highs on Saturday could reach around 80.
Extended discussion (Sunday through Wednesday)
Warm and dry weather forecast across the region early next week as strong ridging over the eastern Pacific extends into NorCal. Highs will be in the lower to mid 80s across the Central Valley, around 10-15 degrees above average. Locally breezy north to east winds will be possible at times.