Weather Alerts For South Pasadena, CA

# HEADLINE -------------------- HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 10 AM PDT TUESDAY EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH FRIDAY EVENING # DETAILS -------------------- WHAT For the Heat Advisory, temperatures up to 107 expected. For the Extreme Heat Watch, dangerously hot conditions with temperatures up to 112 possible. WHERE A portion of southwest California. WHEN For the Heat Advisory, from 10 AM this morning to 10 AM PDT Tuesday. For the Extreme Heat Watch, from Tuesday morning through Friday evening. IMPACTS Heat related illnesses increase significantly during extreme heat events. ISSUED AT Sunday, August 23, 2026 at 12:06 AM PDT ISSUED BY National Weather Service Los Angeles/Oxnard CA HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. # AREAS AFFECTED -------------------- Southeastern Ventura County Valleys, Southern Ventura County Mountains, Western San Fernando Valley, Western Santa Monica Mountains Recreational Area, Calabasas and Agoura Hills, Central Ventura County Valleys, Eastern San Fernando Valley, Eastern San Gabriel Mountains, Eastern Santa Monica Mountains Recreational Area, Interstate 5 Corridor, Lake Casitas, Los Angeles County San Gabriel Valley, Ojai Valley, Santa Barbara County Interior Mountains, Santa Clarita Valley, Santa Susana Mountains, Santa Ynez Mountains Eastern Range, Santa Ynez Mountains Western Range, Western San Gabriel Mountains and Highway 14 Corridor Including the cities of Northridge, Warm Springs, San Rafael Mountain, Westlake Village, San Gabriel, Sunland, Santa Clarita, San Marcos Pass, Tejon Pass, Ojai, Topatopa Mountains, El Monte, Oak View, Meiners Oaks, Simi Valley, The Angeles Crest Highway, Santa Paula, Fillmore, Pasadena, Big Pine Mountain, Mount Baldy, Piru, Woodland Hills, Malibu Bowl, Chatsworth, Figueroa Mountain, Glendale, Pomona, Matilija, La Canada Flintridge, Malibu Lake, Van Nuys, Oat Mountain, Gorman, East Los Angeles, Montecito Hills, Newhall, Universal City, Rose Valley, Thousand Oaks, Newbury Park, Moorpark, Burbank, Pyramid Lake, Acton, Topanga, Mill Creek, Mount Wilson, Wrightwood, Lake Castaic, and Valencia

# HEADLINE -------------------- HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 10 AM PDT TUESDAY EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH FRIDAY EVENING # DETAILS -------------------- WHAT For the Heat Advisory, temperatures up to 107 expected. For the Extreme Heat Watch, dangerously hot conditions with temperatures up to 112 possible. WHERE A portion of southwest California. WHEN For the Heat Advisory, from 10 AM this morning to 10 AM PDT Tuesday. For the Extreme Heat Watch, from Tuesday morning through Friday evening. IMPACTS Heat related illnesses increase significantly during extreme heat events. ISSUED AT Sunday, August 23, 2026 at 12:06 AM PDT ISSUED BY National Weather Service Los Angeles/Oxnard CA HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. # AREAS AFFECTED -------------------- Southeastern Ventura County Valleys, Southern Ventura County Mountains, Western San Fernando Valley, Western Santa Monica Mountains Recreational Area, Calabasas and Agoura Hills, Central Ventura County Valleys, Eastern San Fernando Valley, Eastern San Gabriel Mountains, Eastern Santa Monica Mountains Recreational Area, Interstate 5 Corridor, Lake Casitas, Los Angeles County San Gabriel Valley, Ojai Valley, Santa Barbara County Interior Mountains, Santa Clarita Valley, Santa Susana Mountains, Santa Ynez Mountains Eastern Range, Santa Ynez Mountains Western Range, Western San Gabriel Mountains and Highway 14 Corridor Including the cities of Northridge, Warm Springs, San Rafael Mountain, Westlake Village, San Gabriel, Sunland, Santa Clarita, San Marcos Pass, Tejon Pass, Ojai, Topatopa Mountains, El Monte, Oak View, Meiners Oaks, Simi Valley, The Angeles Crest Highway, Santa Paula, Fillmore, Pasadena, Big Pine Mountain, Mount Baldy, Piru, Woodland Hills, Malibu Bowl, Chatsworth, Figueroa Mountain, Glendale, Pomona, Matilija, La Canada Flintridge, Malibu Lake, Van Nuys, Oat Mountain, Gorman, East Los Angeles, Montecito Hills, Newhall, Universal City, Rose Valley, Thousand Oaks, Newbury Park, Moorpark, Burbank, Pyramid Lake, Acton, Topanga, Mill Creek, Mount Wilson, Wrightwood, Lake Castaic, and Valencia