Full Breakdown
Low-Pressure System Brings Cooler, Breezy Weather and Light Rain to San Diego County Early Next Week
5/5/2026, 1:02:07 PM
Forecast Overview
Low-pressure system will bring cooler air San Diego County Monday-Tuesday. Showers are forecast overnight into Monday and again Tuesday morning, with chances in Oceanside, Escondido, Julian and Alpine. Coastal highs will stay in the mid-60s; mountain and desert sites will be 10-20 °F below normal.
Marine Layer & Low-Pressure
A deepening marine layer with low clouds and gray skies now covers the coast and inland valleys. Onshore flow will intensify, bringing patchy drizzle west of the mountains and keeping temperatures cool through early Tuesday.
Rainfall, Wind, Temperature
Rainfall ranges from a half-inch in Oceanside, Escondido, Julian and Alpine to 0.25 in in the mountains and under 0.15 in elsewhere. Wind gusts of 35-45 mph are expected in mountain passes, with peaks of 60 mph in the San Gorgonio Pass and 55 mph. Temperatures will be mid-60s on the coast and 48-58 °F, 10-20 °F below normal.
Impacts & Travel
Breezy conditions may affect outdoor activities, especially in canyons and mountain passes where gusts can reach 60 mph. Authorities advise securing patio furniture, allowing extra commute time, and checking road conditions. Light drizzle may create slick spots on coastal roads.
NWS Advisories
The National Weather Service issued a wind advisory for Imperial County, forecasting 25-35 mph winds with gusts up to 50 mph. Agency also warned of mountain gusts reaching 55 mph Monday evening, citing low-pressure system as the cause of cooler temperatures, cloud cover and scattered showers.
Early Observation
“Today, San Diego woke to clear skies and cool coastal air, with temperatures around 61°F at Lindbergh Field.” — Hoodline
Conflicts & Gaps
Rainfall estimates range from a half-inch in some inland locales to under 0.15 in elsewhere. Wind gust forecasts vary between 50 mph, 55 mph and isolated 60 mph peaks. Temperature forecasts agree on below-normal values but differ on highs. The second rain wave is noted as “Monday night into Tuesday morning.”
Quotes
- “Rain and cooler, breezier weather are heading for San Diego County to start the week.” — FOX 5/KUSI
- “The National Weather Service issued a Wind Advisory for several areas, including Imperial County, with 25 to 35 mph winds expected and gusts up to 50 mph.” — National Weather Service
- “The best chance for measurable rainfall will come in two waves — the first arriving late tonight, followed by a second round Monday night into Tuesday morning.” — KGTV
- “Secure loose patio furniture and yard items, and allow a little extra time if your commute runs through canyons or other exposed routes.” — Hoodline
Outlook
High pressure should rebuild by Wednesday, clearing clouds and ending gusty conditions. Temperatures will rebound to seasonal levels, with coastal highs in the upper 60s to low 70s and inland deserts reaching the 90s in the week.
