Temperatures will continue to rise into the weekend as a ridge of high pressure builds into the region. Friday’s high in the upper 70s will be followed by a real shot at 80 degrees on Saturday with sunny skies both days. A trough of low pressure approaches the coast by the end of the weekend which will spell the end of the autumn heat, dropping Sunday back into the 70s, Monday into the 60s and bottoming out in the upper 50s on Tuesday. Apart from the cooler temperatures (and variable amounts of cloudiness), the trough will also bring some dusty winds Late Sunday into Monday, which will increase the fire danger. A Fire Weather Watch goes into effect Sunday afternoon and evening as a result.