New health risk warning signs regarding hydrogen sulfide have been installed in parts of the Tijuana River Valley, including a QR code linking to a County website.

The Southwest is expecting a heatwave with temperatures 3-10 degrees above normal, with a cooling trend starting Tuesday, amid chances of showers and thunderstorms.

NWS San Diego predicts above-average temperatures and a return of monsoon moisture with possible thunderstorms in Southern California, advising residents to prepare for the heat and stay vigilant for changing weather conditions.

The NWS San Diego has issued an Extreme Heat Watch for inland areas due to temperatures rising 3 to 7 degrees above average, impacting the region with high heat risks and limited nighttime relief.

San Diego experiences minor warming trend, staying below normal temps; a heat rise is expected next week due to high pressure. Monsoon moisture may bring showers and storms, with no hazardous marine conditions through Thursday.

San Diego's weather remains cool for August with a slight warm-up expected Sunday. Monsoon moisture will return mid-next week, increasing the chance of showers and thunderstorms.

San Diego anticipates a cooling trend before warming next week, with the coast experiencing lower temperatures and possible drizzle, while the marine layer affects some valleys.

San Diego to experience temperature fluctuations, with cooler weather and potential for drizzle over the weekend, and a warm-up next week. High surf and rip currents pose beach hazards.

The National Weather Service San Diego forecasts slight cooling in Southern California from Thursday to Saturday with temperatures below average for coastal and valley areas. Beaches face elevated surf and rip currents.

San Diego's weather synopsis from today until next Monday includes persistent heat until Wednesday followed by gradual cooling and a slight weekend warm-up. Nights will see more coastal clouds moving inland.

San Diego experiences hot weather inland with cooler coastal areas due to marine layer; expect gradual cooling, possible visibility issues, high surf, and consistent temperatures with no rain forecasted.

The National Weather Service warns of a persistent Moderate to Major HeatRisk in San Diego with varied high temperatures and a chance of showers and thunderstorms. Cooling is expected later in the week.

The National Weather Service San Diego predicts a moderate to major HeatRisk for inland and desert areas, with high temperatures and potential thunderstorms.