Southern California is bracing for a week of dreary weather as a cold system from the Pacific Northwest brings cool temperatures, morning drizzle, and gusty winds. According to the National Weather Service's Oxnard office, this weather phenomenon has been dubbed 'May Gray has leveled up'. The forecast indicates that temperatures will be significantly below average, with highs ranging from the mid- to upper-60s on Tuesday, dropping further to the low 60s by Wednesday and Thursday. In mountainous and desert regions, temperatures could plummet by 20 to 25 degrees below normal. This cooler weather pattern is expected to create a deep marine layer that extends beyond the coast, enhancing the chances of drizzle and light rain. While Northern California has already experienced some showers, the Southern California region will also see similar conditions. However, by the weekend, forecasters predict a shift in the weather, with a warming trend anticipated to start on Friday and last into early next week, providing some relief from the cool, cloudy conditions.