San Jose is starting Friday with fog and mist around 61 degrees, but the gray morning will give way to a warmer afternoon near 88. The bigger weather story arrives Saturday, when a heat advisory begins and temperatures climb toward the upper 90s.
The forecast calls for partly sunny skies Friday, with light north-northwest winds and no rain. Temperatures should peak near 88 before easing into the mid-80s later in the afternoon, according to the National Weather Service.
Saturday Starts The Heat Advisory
The heat advisory runs from 11 a.m. Saturday through 10 p.m. Sunday across the Santa Clara Valley and other inland parts of the region. San Jose is forecast to reach about 96 degrees Saturday and 95 Sunday, with overnight lows only falling to the upper 60s.
That combination of hot afternoons and limited overnight relief can make the weekend harder on people without reliable cooling. Drink water, wear lightweight clothing, schedule strenuous outdoor activity for the morning or evening, and check on neighbors, older adults and anyone especially vulnerable to heat.
Hot, Dry Weather Lingers Into Next Week
The heat will ease only gradually, with highs near 92 Monday and Tuesday, 94 Wednesday and 92 Thursday. Skies should remain mostly sunny to clear, winds will generally stay light, and rain is not expected through the forecast period.
Forecasters are also warning of elevated fire-weather conditions in higher terrain as hot, dry air and poor overnight humidity recovery persist. Use extra care with grills, power tools and other potential sources of sparks, especially near dry vegetation.
