![\"San-Diego-0907\"](\"http:\/\/us.weatheramerica.com\/wp-content\/uploads\/sites\/2\/2025\/07\/San-Diego-0907.jpg\")
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SAN DIEGO, California \u2014<\/strong> A significant heat wave<\/strong> is taking shape across San Diego County<\/strong> this week, with inland areas<\/strong> under a heat advisory<\/strong> and desert regions<\/strong> bracing for extreme heat<\/strong>. This marks the first major hot spell<\/strong> of the summer season<\/strong>.<\/p>\n Monday<\/strong> kicked off with a gradual warmup<\/strong>, and by Tuesday<\/strong>, temperatures<\/strong> are expected to rise further, culminating in dangerous highs<\/strong> on Wednesday<\/strong> and Thursday<\/strong>.<\/p>\n The National Weather Service (NWS)<\/strong> has issued a heat advisory<\/strong> effective from 10 a.m. Wednesday through 8 p.m. Thursday<\/strong> for inland communities<\/strong> across San Diego County<\/strong>.<\/p>\n Areas such as La Mesa<\/strong>, Escondido<\/strong>, El Cajon<\/strong>, San Marcos<\/strong>, Santee<\/strong>, and Poway<\/strong> are forecast to experience daytime highs between 97\u00b0F and 101\u00b0F<\/strong> (36\u00b0C\u201338\u00b0C). The valley zones<\/strong>, especially those east of Interstate 15<\/strong>, will see the most intense heat, with moderate to high heat risk<\/strong> anticipated.<\/p>\n The NWS San Diego<\/strong> emphasizes that these elevated temperatures<\/strong> pose a risk for heat-related illnesses<\/strong>, particularly for individuals spending extended periods outdoors<\/strong> or without access to air conditioning<\/strong>.<\/p>\n Simultaneously, from 10 a.m. Wednesday until 8 p.m. Thursday<\/strong>, the desert regions<\/strong> of San Diego County<\/strong>\u2014including areas like Borrego Springs<\/strong>\u2014will be under an extreme heat warning<\/strong>.<\/p>\n Temperatures in the deserts<\/strong> are expected to climb between 115\u00b0F and 120\u00b0F<\/strong> (46\u00b0C\u201349\u00b0C), reaching critical levels<\/strong> that significantly increase the chance of heat exhaustion<\/strong> or heat stroke<\/strong>. The NWS<\/strong> warns that the heat risk will be severe<\/strong>, especially for heat-sensitive groups<\/strong> or those lacking adequate hydration<\/strong> and cooling systems<\/strong>.<\/p>\n In addition to the record-breaking temperatures<\/strong>, humidity levels<\/strong> are expected to rise slightly, adding moisture<\/strong> to the air and causing the \u201cfeels-like\u201d temperature<\/strong> to spike even higher.<\/p>\n Although the midweek stretch<\/strong> will bring the most intense heat<\/strong>, a slight cooling trend<\/strong> is forecast by Saturday<\/strong> and Sunday<\/strong>, with inland temperatures<\/strong> dipping to around 85\u00b0F<\/strong> (29\u00b0C).<\/p>\n Meanwhile, coastal areas<\/strong> of San Diego<\/strong>, including neighborhoods near the Pacific<\/strong>, will remain significantly cooler throughout the week, peaking at the upper 70s to low 80s<\/strong> (25\u00b0C\u201328\u00b0C) during the warmest days.<\/p>\n The NWS<\/strong> continues to urge caution during this heat event<\/strong>, particularly for those in eastern inland valleys<\/strong> and the desert corridor<\/strong>, where daytime highs<\/strong> and overnight lows<\/strong> will offer little relief.<\/p>\n","protected":false},"excerpt":{"rendered":" SAN DIEGO, California \u2014 A significant heat wave is taking shape across San Diego County this week, with inland areas under a heat advisory and desert regions bracing for extreme heat. This marks the first major hot spell of the summer season. Monday kicked off with a gradual warmup, and by Tuesday, temperatures are expected […]<\/p>\n","protected":false},"author":17,"featured_media":5669,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5668","post","type-post","status-publish","format-standard","has-post-thumbnail","category-news"],"yoast_head":"\n<\/h3>\n
Heat advisory for inland San Diego County<\/strong><\/h3>\n
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Extreme heat warning for San Diego deserts<\/strong><\/h3>\n
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Cooler air by the weekend<\/strong><\/h3>\n