San Diego residents can expect a warm-up today with coastal highs reaching 62 to 65 degrees and inland valleys hitting 65 to 71 degrees. Starting today, temperatures are set to climb across the region with even higher temperatures on tap for Tuesday. The NWS forecast indicates a trend, with Tuesday possibly seeing the week's warmest conditions: mid to upper 70s to about 80 in the valleys and low 90s in the lower deserts, according to the National Weather Service San Diego.
Meanwhile, a marine layer will persist, offering cooler nights and mornings, particularly along the coastline and valley areas. With low clouds in the mix each night and morning, turning as deep as 4,000 ft, the cooling effect of the marine layer slightly cools temperatures as we head toward the weekend. From the foothills to the coast, creeping toward the coast by 6 AM, it masks the coming sunlight before retreating during the day.
However, a change is expected by the weekend, with the NWS suggesting "unseasonably cool and windy conditions" with the potential for showers by next Sunday. The forecast discussion included on the NWS website also mentions a cooler air mass that will start to modify by Friday, maintaining highs in the 70s for inland valleys and near 90 degrees for lower deserts, despite a looming low-pressure system that could bring a significant dip in temperatures over the weekend.For those hitting the beaches, surf is up, with NWS issuing a Beach Hazards Statement through Wednesday evening for Orange County, warning beachgoers of elevated surf and strong riptides.
"Elevated surf of 3 to 6 feet with sets to 7 feet will occur through Wednesday," as articulated on the NWS website, calling for extra caution in these areas.The detailed 7-day forecast for San Diego anticipates isolated showers wrapping up this morning, with mostly sunny skies and a high near 65 degrees to follow. The outlook for the rest of the week, sourced from NWS San Diego, shows patchy morning fog with highs consistently in the mid to upper 60s, while nighttime lows hover around the mid-50s.
Come Sunday, cooler temperatures and clearer skies are in the forecast, capping off the week's weather narrative with a high near 63 degrees..
Environment
San Diego to Experience Rising Temperatures Before Weekend Cool Down, NWS Reports

San Diego's weather will warm up with coastal highs of 62-65°F and inland 65-71°F, with a marine layer providing cooler nights and mornings.