


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Los Angeles, CA
Issued by NWS Los Angeles, CA
843 FNUS56 KLOX 181618 FWFLOX Fire Weather Planning Forecast For Southwestern California National Weather Service Los Angeles/Oxnard CA 918 AM PDT Mon Aug 18 2025 ...LONG DURATION HEATWAVE WITH WIDESPREAD ELEVATED FIRE WEATHER CONDITIONS INCLUDING POTENTIAL FOR LARGE PLUME DOMINATED FIRES AWAY FROM THE COAST FROM WEDNESDAY THROUGH SUNDAY... ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH SATURDAY EVENING FOR AN UNSEASONABLY HOT AND UNSTABLE AIR MASS CAPABLE OF PRODUCING EXPLOSIVE FIRE BEHAVIOR FROM LARGE VERTICAL PLUME GROWTH...LOW RELATIVE HUMIDITY...AND LOCALLY BREEZY WINDS FOR PORTIONS OF THE MOUNTAINS AND FOOTHILLS OF LOS ANGELES AND VENTURA COUNTIES... .DISCUSSION... There will be gradual warming and drying across the interior today and Tuesday as upper level high pressure begins to expand westward. There will be gusty Sundowner winds the next few evenings, mainly focused from Gaviota to San Marcos Pass. Wind gusts of 35 to 50 mph will be common each evening. While humidity levels will be elevated this evening, it could lower into the 20 to 40 percent range on Tuesday evening and Wednesday evening, thereby increasing the fire weather concerns for southwest Santa Barbara county. A long duration heat wave is becoming more likely from Wednesday through Sunday. With onshore flow expected to be weaker with this event, heat impacts could potentially spread to inland portions of the coastal plain, where temperatures to between 90 and 100 degrees will be possible. The combination of hot temperatures, low humidities (including poor overnight recoveries in the mountains and foothills), instability, locally breezy conditions, and critically dry fuels away from the coast, will likely bring widespread elevated fire weather conditions across the valleys, mountains, and deserts. During the peak of the heatwave, which will likely be Thursday through Saturday, temperatures could soar to between 98 and 110 degrees for the valleys, lower mountains, and deserts, with minimum humidities generally ranging between 8 and 20 percent, and mixing heights potentially rising to between 12,000 and 17,000 feet across the interior. While widespread strong winds are not anticipated with this upcoming heat wave, the hot temperatures, low humidities, increased instability, locally breezy conditions (mainly across mountains, foothills, and canyons), and critically dry fuels will bring the threat of large plume dominated fires (especially in the mountains and foothills), capable of rapid growth and extreme fire behavior. The highest risk areas will be the interior mountains and foothills of Los Angeles and Ventura counties, as well as Santa Clarita Valley where a Fire Weather Watch is in effect. The Fire Weather Watch area covers areas that have been a climatologically notorious area for large plume-dominated fires in similar weather patterns to what is coming later this week. Moreover, the western edge of a southwest-states monsoonal moisture influx will overlie Los Angeles and Ventura Counties, which will contribute to the development of atmospheric buoyancy Friday through Sunday without significantly moistening the airmass -- i.e., displaced away from the core of the moisture source. While lightning-induced fire ignitions are a distinctive possibility on the peripheries of rain cores, the increase in buoyancy will further aid in large vertical plume growth accompanied by potential pyrocumulus development and related explosive fire behavior. CAZ362-366>368-182345- Malibu Coast-Los Angeles County Beaches-Palos Verdes Hills- Los Angeles County Inland Coast including Downtown Los Angeles- Including the cities of Malibu, Pacific Palisades, LAX, Long Beach, Redondo Beach, Santa Monica, Torrance, Rancho Palos Verdes, Beverly Hills, Compton, Culver City, Downey, Hollywood, and Norwalk 918 AM PDT Mon Aug 18 2025 .TODAY... Sky/weather.........Morning low clouds and fog then sunny. Max temperature.....72-77 beaches to 82-86 inland. 24 hr trend......Little change. Min humidity........70-80 percent beaches to 55-70 percent inland. 24 hr trend......Down 16. 20-foot winds.......Variable 3-6 mph becoming west 6-12 mph with gusts to 20 mph in the afternoon. Marine layer........2500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear except patchy low clouds and fog forming overnight. Min temperature.....61-66. Max humidity........80-100 percent. 20-foot winds.......Southwest 6-12 mph with gusts to 20 mph early becoming southeast 5-10 mph. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny except areas of morning low clouds and fog. Max temperature.....73-78 beaches to 83-86 inland. Min humidity........55-65 percent beaches to 40-55 percent inland. 20-foot winds.......Variable 3-6 mph becoming southwest 8-15 mph with gusts to 25 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ371>373-548-182345- Calabasas and Agoura Hills-Western San Fernando Valley- Eastern San Fernando Valley-Los Angeles County San Gabriel Valley- Including the cities of Westlake Village, Malibu Lake, Northridge, Woodland Hills, Van Nuys, Chatsworth, Burbank, Universal City, Glendale, Sunland, La Canada Flintridge, East Los Angeles, El Monte, Pasadena, Pomona, and San Gabriel 918 AM PDT Mon Aug 18 2025 .TODAY... Sky/weather.........Sunny except patchy morning low clouds and fog. Max temperature.....85-95. 24 hr trend......Up 4. Min humidity........35-55 percent. 24 hr trend......Down 18. 20-foot winds.......Variable 3-6 mph becoming west 5-10 mph in the afternoon. Marine layer........2500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....58-66. Max humidity........75-100 percent. 20-foot winds.......Southwest 5-10 mph early becoming variable 3-6 mph. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....86-96. Min humidity........20-35 percent. 20-foot winds.......Variable 3-6 mph becoming southwest 6-12 mph with gusts to 20 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ369-370-182345- Western Santa Monica Mountains Recreational Area- Eastern Santa Monica Mountains Recreational Area- Including the cities of Malibu Bowl and Topanga 918 AM PDT Mon Aug 18 2025 .TODAY... Sky/weather.........Sunny except patchy morning low clouds and fog. Max temperature.....79-88 except 70-75 closer to the coast. 24 hr trend......Little change. Min humidity........50-70 percent. 24 hr trend......Down 12. 20-foot winds....... Valleys.........Variable 3-6 mph becoming west 6-12 mph with gusts to 20 mph in the afternoon. Ridges..........Variable 3-6 mph becoming west 6-12 mph with gusts to 20 mph in the afternoon. Marine layer........1500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....58-63. Max humidity........70-100 percent. 20-foot winds....... Valleys.........West 6-12 mph with gusts to 20 mph in the evening becoming southeast 5-10 mph. Ridges..........West 6-12 mph with gusts to 20 mph in the evening becoming southeast 5-10 mph. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....85-95 except 74-79 closer to the coast. Min humidity........30-50 percent. 20-foot winds....... Valleys.........Variable 3-6 mph becoming southwest 8-15 mph with gusts to 25 mph in the afternoon. Ridges..........Variable 3-6 mph becoming southwest 8-15 mph with gusts to 25 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ354-355-182345- Ventura County Beaches-Ventura County Inland Coast- Including the cities of Oxnard, Point Mugu, Port Hueneme, Ventura, Camarillo, and East Ventura 918 AM PDT Mon Aug 18 2025 .TODAY... Sky/weather.........Sunny except areas of morning low clouds and fog. Max temperature.....69-74 beaches to 77-80 inland. 24 hr trend......Up 4. Min humidity........60-80 percent. 24 hr trend......Down 24. 20-foot winds.......Variable 3-6 mph becoming west 10-15 mph in the afternoon. Marine layer........1500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....58-61. Max humidity........85-90 percent. 20-foot winds.......West 6-12 mph in the evening becoming northeast 5-10 mph. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny except patchy morning low clouds and fog. Max temperature.....70-75 beaches to 78-81 inland. Min humidity........55-65 percent beaches to 40-55 percent inland. 20-foot winds.......Variable 3-6 mph becoming southwest 10-15 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ356>358-374-182345- Lake Casitas-Ojai Valley-Central Ventura County Valleys- Southeastern Ventura County Valleys- Including the cities of Meiners Oaks, Oak View, Ojai, Fillmore, Piru, Santa Paula, Moorpark, Newbury Park, Simi Valley, and Thousand Oaks 918 AM PDT Mon Aug 18 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....82-91 except 72-77 closer to the coast. 24 hr trend......Up 8. Min humidity........40-60 percent. 24 hr trend......Down 16. 20-foot winds.......North 5-10 mph becoming west 6-12 mph with gusts to 20 mph in the afternoon. Marine layer........1500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....56-64. Max humidity........75-90 percent except 55-70 percent in the hills. 20-foot winds.......West 5-10 mph early becoming northeast. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....86-96 except 73-78 closer to the coast. Min humidity........25-45 percent. 20-foot winds.......Variable 3-6 mph becoming southwest 6-12 mph with gusts to 20 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ375-182345- Santa Susana Mountains- Including the city of Oat Mountain 918 AM PDT Mon Aug 18 2025 ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH SATURDAY EVENING... .TODAY... Sky/weather.........Sunny. Max temperature.....81-90 except 75-80 colder hills. 24 hr trend......Up 4. Min humidity........40-60 percent. 24 hr trend......Down 20. 20-foot winds.......North 5-10 mph becoming west 6-12 mph with gusts to 20 mph in the afternoon. Marine layer........1500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....56-65. Max humidity........50-70 percent except 70-85 percent colder valleys. 20-foot winds.......Southwest 5-10 mph early becoming northeast. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....85-94 except 77-82 colder hills. Min humidity........20-40 percent. 20-foot winds.......Variable 3-6 mph becoming southwest 8-15 mph with gusts to 25 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ288-182345- Santa Clarita Valley- 918 AM PDT Mon Aug 18 2025 ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH SATURDAY EVENING... .TODAY... Sky/weather.........Sunny. Max temperature.....88-93. 24 hr trend......Up 4. Min humidity........30-40 percent. 24 hr trend......Down 16. 20-foot winds.......North 5-10 mph becoming west 6-12 mph with gusts to 20 mph in the afternoon. Marine layer........1500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....58-63. Max humidity........60-80 percent. 20-foot winds.......Southwest 6-12 mph with gusts to 20 mph early becoming north. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....91-96. Min humidity........20-25 percent. 20-foot winds.......Variable 3-6 mph becoming southwest 8-15 mph with gusts to 25 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ379-380-182345- Western San Gabriel Mountains and Highway 14 Corridor- Eastern San Gabriel Mountains- Including the cities of Acton, Warm Springs, Mill Creek, Mount Wilson, Mount Baldy, Wrightwood, and The Angeles Crest Highway 918 AM PDT Mon Aug 18 2025 ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH SATURDAY EVENING... .TODAY... Sky/weather.........Sunny. Max temperature.....83-93 low elevations to 72-79 higher elevations. 24 hr trend......Up 4. Min humidity........25-45 percent except 15-25 percent drier peaks. 24 hr trend......Down 16. 20-foot winds....... Valleys.........Northwest 6-12 mph becoming southwest 6-12 mph with gusts to 20 mph in the afternoon. Ridges..........Northwest 6-12 mph becoming southwest 6-12 mph with gusts to 20 mph in the afternoon. Marine layer........1500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....56-65. Max humidity........20-40 percent except 60-75 percent colder valleys and slopes. 20-foot winds....... Valleys.........Southwest 5-10 mph. Ridges..........Southwest 5-10 mph. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....85-95 low elevations to 74-81 higher elevations. Min humidity........10-25 percent. 20-foot winds....... Valleys.........Variable 3-6 mph becoming southwest 8-15 mph with gusts to 25 mph in the afternoon. Ridges..........Variable 3-6 mph becoming southwest 8-15 mph with gusts to 25 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ383-182345- Antelope Valley- Including the cities of Palmdale, Lancaster, and Lake Los Angeles 918 AM PDT Mon Aug 18 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....91-99. 24 hr trend......Little change. Min humidity........9-15 percent. 24 hr trend......Down 4. 20-foot winds.......West 6-12 mph becoming southwest 10-20 mph with gusts to 30 mph in the afternoon. Marine layer........None. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....58-68. Max humidity........35-45 percent. 20-foot winds.......Southwest 8-15 mph with gusts to 25 mph. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....92-101. Min humidity........8-15 percent. 20-foot winds.......West 5-10 mph becoming 8-15 mph with gusts to 25 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ381-382-182345- Western Antelope Valley Foothills-Eastern Antelope Valley Foothills- Including the cities of Elizabeth Lake, Lake Palmdale, Valyermo, Llano, and Pearblossom 918 AM PDT Mon Aug 18 2025 ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH SATURDAY EVENING... .TODAY... Sky/weather.........Sunny. Max temperature.....88-96 except 82-84 cooler hills. 24 hr trend......Little change. Min humidity........9-15 percent. 24 hr trend......Down 10. 20-foot winds.......West 6-12 mph becoming southwest 10-20 mph with gusts to 30 mph in the afternoon. Marine layer........None. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....60-67. Max humidity........25-45 percent. 20-foot winds.......Southwest 10-20 mph with gusts to 30 mph in the evening becoming 8-15 mph. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....90-98 except 84-86 cooler hills. Min humidity........9-15 percent. 20-foot winds.......Southwest 6-12 mph becoming west 10-20 mph with gusts to 30 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ377-378-182345- Northern Ventura County Mountains-Interstate 5 Corridor- Including the cities of Lockwood Valley, Mount Pinos, Ozena, Tejon Pass, Gorman, and Pyramid Lake 918 AM PDT Mon Aug 18 2025 ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH SATURDAY EVENING... .TODAY... Sky/weather.........Sunny. Max temperature.....81-91 low elevations to 71-78 higher elevations. 24 hr trend......Up 4. Min humidity........15-35 percent. 24 hr trend......Down 16. 20-foot winds....... Valleys.........Northwest 8-15 mph with gusts to 25 mph. Ridges..........Northwest 8-15 mph with gusts to 25 mph. Marine layer........None. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....48-58. Max humidity........30-50 percent except 55-70 percent colder valleys and slopes. 20-foot winds....... Valleys.........Northwest 6-12 mph. Ridges..........Northwest 6-12 mph. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....85-95 low elevations to 73-80 higher elevations. Min humidity........10-20 percent. 20-foot winds....... Valleys.........North 5-10 mph becoming south 8-15 mph with gusts to 25 mph in the afternoon. Ridges..........North 5-10 mph becoming south 8-15 mph with gusts to 25 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ376-182345- Southern Ventura County Mountains- Including the cities of Rose Valley, Matilija, and Topatopa Mountains 918 AM PDT Mon Aug 18 2025 ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH SATURDAY EVENING... .TODAY... Sky/weather.........Sunny. Max temperature.....85-92 low elevations to 75-83 higher elevations. 24 hr trend......Up 4. Min humidity........20-40 percent. 24 hr trend......Down 12. 20-foot winds....... Valleys.........North 6-12 mph becoming northwest 8-15 mph with gusts to 25 mph in the afternoon. Ridges..........North 6-12 mph becoming northwest 8-15 mph with gusts to 25 mph in the afternoon. Marine layer........1500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....51-61. Max humidity........30-50 percent except 60-75 percent colder valleys and slopes. 20-foot winds....... Valleys.........West 6-12 mph with gusts to 20 mph in the evening becoming north 6-12 mph. Ridges..........West 6-12 mph with gusts to 20 mph in the evening becoming north 6-12 mph. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....86-95 low elevations to 76-84 higher elevations. Min humidity........15-25 percent. 20-foot winds....... Valleys.........Variable 3-6 mph becoming southwest 8-15 mph with gusts to 25 mph in the afternoon. Ridges..........Variable 3-6 mph becoming southwest 8-15 mph with gusts to 25 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ353-182345- Santa Barbara County Interior Mountains- Including the cities of Big Pine Mountain, Figueroa Mountain, and San Rafael Mountain 918 AM PDT Mon Aug 18 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....83-90 low elevations to 75-81 higher elevations. 24 hr trend......Up 8. Min humidity........20-40 percent. 24 hr trend......Down 14. 20-foot winds....... Valleys.........North 6-12 mph becoming northwest 8-15 mph with gusts to 25 mph in the afternoon. Ridges..........North 6-12 mph becoming northwest 8-15 mph with gusts to 25 mph in the afternoon. Marine layer........2500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....53-63. Max humidity........35-55 percent except 70-85 percent colder valleys and slopes. 20-foot winds....... Valleys.........Northwest 6-12 mph with gusts to 20 mph in the evening becoming northeast. Ridges..........Northwest 6-12 mph with gusts to 20 mph in the evening becoming northeast. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....87-94 low elevations to 77-85 higher elevations. Min humidity........15-35 percent. 20-foot winds....... Valleys.........Northeast 5-10 mph becoming west 8-15 mph with gusts to 25 mph in the afternoon. Ridges..........Northeast 5-10 mph becoming west 8-15 mph with gusts to 25 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ351-182345- Santa Ynez Mountains Western Range- Including the city of San Marcos Pass 918 AM PDT Mon Aug 18 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....76-84. 24 hr trend......Little change. Min humidity........25-45 percent. 24 hr trend......Down 12. 20-foot winds.......Northwest 8-15 mph with gusts to 25 mph. Marine layer........2500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....54-64. Max humidity........60-80 percent except 40-55 percent in the hills. 20-foot winds.......Northwest 15-30 mph with gusts to 45 mph. Isolated gusts to 50 mph near Gaviota. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....78-88. Min humidity........30-40 percent. 20-foot winds.......North 5-10 mph becoming west 8-15 mph with gusts to 25 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ349-182345- Santa Barbara County Southwestern Coast- Including the cities of El Capitan State Beach, Gaviota, Jalama Beach, and Refugio State Beach 918 AM PDT Mon Aug 18 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....70-78 except 82-84 warmer hills. 24 hr trend......Up 8. Min humidity........30-50 percent. 24 hr trend......Down 22. 20-foot winds.......Northwest 10-20 mph with gusts to 30 mph. Marine layer........2500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....53-60. Max humidity........75-100 percent. 20-foot winds.......Northwest 15-25 mph with gusts to 40 mph. Isolated gusts to 50 mph near Gaviota. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny except patchy morning low clouds and dense fog. Max temperature.....67-76 except 80-85 warmer hills. Min humidity........40-60 percent. 20-foot winds.......North 6-12 mph becoming northwest 10-20 mph with gusts to 25 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ352-182345- Santa Ynez Mountains Eastern Range- Including the city of Montecito Hills 918 AM PDT Mon Aug 18 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....79-87 except 73-75 closer to the coast. 24 hr trend......Up 4. Min humidity........40-60 percent. 24 hr trend......Down 18. 20-foot winds.......North 5-10 mph becoming west 6-12 mph with gusts to 20 mph in the afternoon. Marine layer........2500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....58-66. Max humidity........60-80 percent except 40-55 percent in the hills. 20-foot winds.......West 6-12 mph with gusts to 20 mph early becoming north. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....83-92 except 77-82 closer to the coast. Min humidity........25-40 percent. 20-foot winds.......Variable 3-6 mph becoming southwest 6-12 mph with gusts to 20 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ350-182345- Santa Barbara County Southeastern Coast- Including the cities of Carpinteria, Goleta, Montecito, and Santa Barbara 918 AM PDT Mon Aug 18 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....69-79. 24 hr trend......Up 4. Min humidity........55-75 percent. 24 hr trend......Down 24. 20-foot winds.......North 5-10 mph becoming west 8-12 mph in the afternoon. Marine layer........2500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....56-59. Max humidity........80-100 percent. 20-foot winds.......West 8-15 mph in the evening becoming north 6-12 mph. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny except patchy morning low clouds and fog. Max temperature.....70-79 except 80-85 in the hills. Min humidity........40-60 percent. 20-foot winds.......Variable 3-6 mph becoming southwest 8-12 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ340-341-346-347-182345- San Luis Obispo County Beaches- San Luis Obispo County Inland Central Coast- Santa Barbara County Central Coast Beaches- Santa Barbara County Inland Central Coast- Including the cities of Arroyo Grande, Avila Beach, Cambria, Morro Bay, Pismo Beach, Lopez Lake, Nipomo, San Luis Obispo, Lompoc, Vandenberg Space Force Base, Buellton, and Santa Maria 918 AM PDT Mon Aug 18 2025 .TODAY... Sky/weather.........Sunny except patchy morning low clouds and dense fog. Max temperature.....65-70 beaches to 77-84 inland. 24 hr trend......Up 4. Min humidity........65-75 percent beaches to 40-65 percent inland. 24 hr trend......Down 36. 20-foot winds.......North 6-12 mph becoming northwest 10-20 mph with gusts to 25 mph in the afternoon. Marine layer........1000 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....52-56. Max humidity........85-100 percent. 20-foot winds.......Northwest 8-15 mph. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny except areas of morning low clouds and dense fog. Max temperature.....62-69 beaches to 72-82 inland. Min humidity........60-70 percent beaches to 35-60 percent inland. 20-foot winds.......Variable 3-6 mph becoming northwest 10-20 mph with gusts to 25 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ348-182345- Santa Ynez Valley- Including the cities of Lake Cachuma, Los Olivos, Santa Ynez, and Solvang 918 AM PDT Mon Aug 18 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....82-91 except 76-81 closer to the coast. 24 hr trend......Little change. Min humidity........35-55 percent. 24 hr trend......Down 24. 20-foot winds.......North 5-10 mph becoming northwest 8-15 mph with gusts to 25 mph in the afternoon. Marine layer........1000 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....50-57. Max humidity........75-100 percent. 20-foot winds.......Northwest 6-12 mph. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny except patchy morning low clouds and dense fog. Max temperature.....83-93 except 73-78 closer to the coast. Min humidity........25-40 percent. 20-foot winds.......Variable 3-6 mph becoming west 8-15 mph with gusts to 25 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ342-343-182345- Santa Lucia Mountains-Southern Salinas Valley- Including the cities of Hearst Castle, Irish Hills, Atascadero, Lake Nacimiento, Paso Robles, San Miguel, and Templeton 918 AM PDT Mon Aug 18 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....83-93 except 72-77 closer to the coast. 24 hr trend......Up 4. Min humidity........20-40 percent except 40-55 percent closer to the coast. 24 hr trend......Down 8. 20-foot winds....... Valleys.........Northwest 8-15 mph with gusts to 25 mph. Ridges..........Northwest 8-15 mph with gusts to 25 mph. Marine layer........1000 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....51-61. Max humidity........55-75 percent except 75-90 percent colder valleys and slopes. 20-foot winds....... Valleys.........Northwest 6-12 mph. Ridges..........Northwest 6-12 mph. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....85-95 except 70-75 closer to the coast. Min humidity........20-35 percent except 40-55 percent closer to the coast. 20-foot winds....... Valleys.........Variable 3-6 mph becoming northwest 8-15 mph with gusts to 25 mph in the afternoon. Ridges..........Variable 3-6 mph becoming northwest 8-15 mph with gusts to 25 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ238-344-345-182345- Cuyama Valley-San Luis Obispo County Interior Valleys- San Luis Obispo County Mountains- Including the cities of Carrizo Plain, Creston, Shandon, Caliente Range, La Panza Range, and Santa Margarita Lake 918 AM PDT Mon Aug 18 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....87-92 low elevations to 80-85 higher elevations. 24 hr trend......Up 4. Min humidity........20-35 percent. 24 hr trend......Down 10. 20-foot winds....... Valleys.........Variable 3-6 mph becoming north 8-15 mph with gusts to 25 mph in the afternoon. Ridges..........Variable 3-6 mph becoming north 8-15 mph with gusts to 25 mph in the afternoon. Marine layer........1000 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....52-62. Max humidity........45-65 percent except 65-80 percent colder valleys and slopes. 20-foot winds....... Valleys.........Northwest 5-10 mph. Ridges..........Northwest 5-10 mph. CWR (>0.10 in)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....89-95 low elevations to 81-87 higher elevations. Min humidity........15-25 percent. 20-foot winds....... Valleys.........Variable 3-6 mph becoming north 6-12 mph with gusts to 20 mph in the afternoon. Ridges..........Variable 3-6 mph becoming north 6-12 mph with gusts to 20 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ .Extended... ...Coasts/Valleys Including the Santa Monica Range... .WEDNESDAY...Clear except night through morning low clouds and fog. Lows in the 50s to around 70. Highs from the upper 60s to mid 70s at the beaches to 92 to 102 inland. Northeast winds 10 to 20 mph with gusts to 30 mph. .THURSDAY...Clear except night through morning low clouds and fog. Lows in the 50s to mid 70s. Highs from the 70s at the beaches to 95 to 105 inland. Northeast winds 8 to 15 mph. .FRIDAY...Clear except night through morning low clouds and fog. Lows in the 50s to mid 70s. Highs from the upper 60s to mid 70s at the beaches to 95 to 105 inland. North winds 8 to 15 mph. ...Mountains / Los Padres and Angeles National Forests... .WEDNESDAY...Clear. Lows from the upper 60s and 70s at low elevations to the upper 40s to mid 50s in colder valleys and peaks. Highs from 90 to 100 at low elevations to the 80s at high elevations. Northeast winds 10 to 20 mph with gusts to 30 mph. .THURSDAY...Clear. Lows from the 70s to around 80 at low elevations to the 50s in colder valleys and peaks. Highs from 95 to 104 at low elevations to the mid 80s to lower 90s at high elevations. Northeast winds 8 to 15 mph. .FRIDAY...Clear. Slight chance of showers and thunderstorms. Lows from the 70s to lower 80s at low elevations to the mid 50s to lower 60s in colder valleys and peaks. Highs from 95 to 105 at low elevations to the mid 80s to lower 90s at high elevations. Southeast winds 8 to 15 mph. ...Antelope Valley... .WEDNESDAY...Clear. Lows in the upper 50s and 60s except the mid 70s to around 80 in the hills. Highs 98 to 104. West winds 10 to 20 mph with gusts to 30 mph. .THURSDAY...Clear. Lows in the mid 60s to mid 70s except around 80 in the hills. Highs 102 to 107. Southwest winds 8 to 15 mph. .FRIDAY...Clear. Slight chance of showers and thunderstorms. Lows in the 70s to lower 80s. Highs 104 to 109. Southwest winds 15 to 25 mph with gusts to 35 mph. $$ Gomberg WWW.WEATHER.GOV/LOSANGELES