


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Los Angeles, CA
Issued by NWS Los Angeles, CA
441 FNUS56 KLOX 311613 FWFLOX Fire Weather Planning Forecast For Southwestern California National Weather Service Los Angeles/Oxnard CA 913 AM PDT Sun Aug 31 2025 ...WARMING AND DRYING TREND THROUGH HOLIDAY WEEKEND WITH ELEVATED FIRE WEATHER CONDITIONS ACROSS INTERIOR INCLUDING RISK OF LARGE PLUME DOMINATED FIRES... ...POTENTIAL INCREASE IN MONSOONAL MOISTURE AND INSTABILITY WILL BRING THREAT OF THUNDERSTORMS AND ENHANCED RISK OF LARGE PLUME DOMINATED FIRES LATE MONDAY NIGHT THROUGH FRIDAY... .DISCUSSION... Temperatures will warm today through Tuesday as high pressure aloft reestablishes and builds back into the Four Corners Region. The peak of the heat will be Monday through Wednesday, when highs of 95 to 106 will be common across the valleys, lower mountains, and deserts. The hotter temperatures combined with increased instability will bring deeper mixing heights which are expected to peak Monday through Wednesday at 12,000 to 18,000 feet across the interior. As a result, there is an elevated risk for large plume dominated fires across the interior. Humidities between 10 and 25 percent will be common over the warmest valleys and mountains through Tuesday, then potential humidity increase by Wednesday due to an influx of monsoonal moistures. Increasing mid level moisture associated with an upper level disturbance will bring a slight chance of showers and thunderstorms by late Monday night into Tuesday morning across LA/Ventura counties. From Tuesday afternoon through Friday, the focus will be more traditional mountain/desert shower and thunderstorm activity, with the best chances (15-30%) over the San Gabriel mountains and Antelope Valley. but there is also a 5-15% chance of thunderstorms for other portions of Southwest California including coastal/valley areas. The leading edge of the monsoon surge may be somewhat drier at low levels, which may lead to the potential for isolated dry lightning strikes and gusty/erratic downburst/outflow winds late Monday night into Tuesday. CAZ354-355-362-366>368-312315- Ventura County Beaches-Ventura County Inland Coast-Malibu Coast- Los Angeles County Beaches-Palos Verdes Hills- Los Angeles County Inland Coast including Downtown Los Angeles- Including the cities of Oxnard, Point Mugu, Port Hueneme, Ventura, Camarillo, East Ventura, Malibu, Pacific Palisades, LAX, Long Beach, Redondo Beach, Santa Monica, Torrance, Rancho Palos Verdes, Beverly Hills, Compton, Culver City, Downey, Hollywood, and Norwalk 913 AM PDT Sun Aug 31 2025 .TODAY... Sky/weather.........Sunny except areas of morning low clouds and fog. Max temperature.....78-83 beaches to 89-94 inland. 24 hr trend......Little change. Min humidity........60-70 percent beaches to 40-60 percent inland. 24 hr trend......Little change. 20-foot winds.......Variable 3-6 mph becoming southwest 5-10 mph in the afternoon. Marine layer........500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....61-69. Max humidity........75-85 percent. 20-foot winds.......West 6-12 mph with gusts to 20 mph early becoming variable 3-6 mph. CWR (>0.10 in)......0 percent. .LABOR DAY... Sky/weather.........Sunny except patchy morning low clouds and fog. Max temperature.....78-83 beaches to 90-95 inland. Min humidity........50-60 percent beaches to 25-50 percent inland. 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. $$ CAZ369-370-372-373-375-548-312315- Western Santa Monica Mountains Recreational Area- Eastern Santa Monica Mountains Recreational Area- Western San Fernando Valley-Eastern San Fernando Valley- Santa Susana Mountains-Los Angeles County San Gabriel Valley- Including the cities of Malibu Bowl, Topanga, Northridge, Woodland Hills, Van Nuys, Chatsworth, Burbank, Universal City, Glendale, Sunland, La Canada Flintridge, Oat Mountain, East Los Angeles, El Monte, Pasadena, Pomona, and San Gabriel 913 AM PDT Sun Aug 31 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....95-105 except 83-88 closer to the coast. 24 hr trend......Up 4. Min humidity........20-40 percent except 45-55 percent closer to the coast. 24 hr trend......Little change. 20-foot winds....... Valleys.........Variable 3-6 mph becoming southwest 5-10 mph in the afternoon. Ridges..........Variable 3-6 mph becoming southwest 5-10 mph in the afternoon. Marine layer........500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....68-76 except 62-64 colder valleys. Max humidity........35-55 percent except 65-80 percent colder valleys and slopes. 20-foot winds....... Valleys.........Southwest 6-12 mph with gusts to 20 mph early becoming variable 3-6 mph. Ridges..........Southwest 6-12 mph with gusts to 20 mph early becoming variable 3-6 mph. CWR (>0.10 in)......0 percent. .LABOR DAY... Sky/weather.........Sunny. Max temperature.....96-106 except 86-91 closer to the coast. Min humidity........15-35 percent. 20-foot winds....... Valleys.........Variable 3-6 mph becoming southwest 5-10 mph in the afternoon. Ridges..........Variable 3-6 mph becoming southwest 5-10 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ356>358-371-374-312315- Lake Casitas-Ojai Valley-Central Ventura County Valleys- Calabasas and Agoura Hills-Southeastern Ventura County Valleys- Including the cities of Meiners Oaks, Oak View, Ojai, Fillmore, Piru, Santa Paula, Westlake Village, Malibu Lake, Moorpark, Newbury Park, Simi Valley, and Thousand Oaks 913 AM PDT Sun Aug 31 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....94-103 except 84-89 closer to the coast. 24 hr trend......Up 4. Min humidity........40-55 percent except 25-35 percent farthest inland. 24 hr trend......Little change. 20-foot winds.......Variable 3-6 mph becoming southwest 6-12 mph wit h gusts to 20 mph in the afternoon. Marine layer........500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....57-66 except 69-74 in the hills. Max humidity........60-75 percent except 40-55 percent in the hills. 20-foot winds.......West 5-10 mph early becoming variable 3-6 mph. CWR (>0.10 in)......0 percent. .LABOR DAY... Sky/weather.........Sunny. Max temperature.....94-104 except 84-89 closer to the coast. Min humidity........20-40 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. $$ CAZ288-379-312315- Santa Clarita Valley- Western San Gabriel Mountains and Highway 14 Corridor- Including the cities of Acton, Warm Springs, and Mill Creek 913 AM PDT Sun Aug 31 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....92-102 low elevations to 82-89 higher elevations. 24 hr trend......Up 4. Min humidity........12-25 percent. 24 hr trend......Little change. 20-foot winds....... Valleys.........Northeast 5-10 mph becoming southwest 6-12 mph with gusts to 20 mph in the afternoon. Ridges..........Northeast 5-10 mph becoming southwest 6-12 mph with gusts to 20 mph in the afternoon. Marine layer........None. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....68-76 except 63-65 colder valleys and slopes. Max humidity........30-50 percent. 20-foot winds....... Valleys.........Southwest 6-12 mph with gusts to 20 mph early becoming variable 3-6 mph. Ridges..........Southwest 6-12 mph with gusts to 20 mph early becoming variable 3-6 mph. CWR (>0.10 in)......0 percent. .LABOR DAY... Sky/weather.........Sunny. Max temperature.....94-104 low elevations to 84-91 higher elevations. Min humidity........12-20 percent. 20-foot winds....... Valleys.........Variable 3-6 mph becoming southwest 6-12 mph with gusts to 20 mph in the afternoon. Ridges..........Variable 3-6 mph becoming southwest 6-12 mph with gusts to 20 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ380-382-312315- Eastern San Gabriel Mountains-Eastern Antelope Valley Foothills- Including the cities of Mount Wilson, Mount Baldy, Wrightwood, The Angeles Crest Highway, Valyermo, Llano, and Pearblossom 913 AM PDT Sun Aug 31 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....91-101 low elevations to 74-81 higher elevations. 24 hr trend......Down 8. Min humidity........15-30 percent. 24 hr trend......Little change. 20-foot winds....... Valleys.........Variable 3-6 mph becoming southwest 6-12 mph with gusts to 20 mph in the afternoon. Ridges..........Variable 3-6 mph becoming southwest 6-12 mph with gusts to 20 mph in the afternoon. Marine layer........None. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....68-76 except 62-64 colder valleys and slopes. Max humidity........25-40 percent except 45-55 percent colder valleys and slopes. 20-foot winds....... Valleys.........Southwest 5-10 mph in the evening becoming variable 3-6 mph. Ridges..........Southwest 5-10 mph in the evening becoming variable 3-6 mph. CWR (>0.10 in)......0 percent. .LABOR DAY... Sky/weather.........Sunny. Max temperature.....91-101 low elevations to 75-82 higher elevations. Min humidity........15-25 percent. 20-foot winds....... Valleys.........Variable 3-6 mph becoming southwest 6-12 mph with gusts to 20 mph in the afternoon. Ridges..........Variable 3-6 mph becoming southwest 6-12 mph with gusts to 20 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ381-383-312315- Western Antelope Valley Foothills-Antelope Valley- Including the cities of Elizabeth Lake, Lake Palmdale, Palmdale, Lancaster, and Lake Los Angeles 913 AM PDT Sun Aug 31 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....95-105. 24 hr trend......Up 4. Min humidity........10-20 percent. 24 hr trend......Little change. 20-foot winds.......West 8-15 mph. Marine layer........None. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....62-70 except 74-76 in the hills. Max humidity........30-40 percent. 20-foot winds.......Southwest 8-15 mph. CWR (>0.10 in)......0 percent. .LABOR DAY... Sky/weather.........Sunny. Max temperature.....95-105. Min humidity........10-15 percent. 20-foot winds.......West 8-15 mph. CWR (>0.10 in)......0 percent. $$ CAZ377-378-312315- Northern Ventura County Mountains-Interstate 5 Corridor- Including the cities of Lockwood Valley, Mount Pinos, Ozena, Tejon Pass, Gorman, and Pyramid Lake 913 AM PDT Sun Aug 31 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....91-101 low elevations to 80-87 higher elevations. 24 hr trend......Up 4. Min humidity........12-20 percent. 24 hr trend......Little change. 20-foot winds....... Valleys.........North 6-12 mph becoming south in the afternoon. Ridges..........North 6-12 mph becoming south in the afternoon. Marine layer........None. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....65-75 except 51-56 colder valleys and slopes. Max humidity........30-50 percent. 20-foot winds....... Valleys.........West 6-12 mph with gusts to 20 mph in the evening becoming north 5-10 mph. Ridges..........West 6-12 mph with gusts to 20 mph in the evening becoming north 5-10 mph. CWR (>0.10 in)......0 percent. .LABOR DAY... Sky/weather.........Sunny. Max temperature.....92-102 low elevations to 81-88 higher elevations. Min humidity........12-20 percent. 20-foot winds....... Valleys.........North 5-10 mph becoming south 6-12 mph with gusts to 20 mph in the afternoon. Ridges..........North 5-10 mph becoming south 6-12 mph with gusts to 20 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ352-376-312315- Santa Ynez Mountains Eastern Range-Southern Ventura County Mountains- Including the cities of Montecito Hills, Rose Valley, Matilija, and Topatopa Mountains 913 AM PDT Sun Aug 31 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....94-102 low elevations to 84-92 higher elevations. 24 hr trend......Up 4. Min humidity........10-20 percent except 30-50 percent coastal slopes. 24 hr trend......Little change. 20-foot winds....... Valleys.........North 6-12 mph becoming south in the afternoon. Ridges..........North 6-12 mph becoming south in the afternoon. Marine layer........None. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....67-76 except 57-62 colder valleys and slopes. Max humidity........25-45 percent except 45-60 percent colder valleys and slopes. 20-foot winds....... Valleys.........West 5-10 mph early becoming variable 3-6 mph. Ridges..........West 5-10 mph early becoming variable 3-6 mph. CWR (>0.10 in)......0 percent. .LABOR DAY... Sky/weather.........Sunny. Max temperature.....95-104 low elevations to 85-93 higher elevations. Min humidity........15-25 percent. 20-foot winds....... Valleys.........Variable 3-6 mph becoming south 6-12 mph with gusts to 20 mph in the afternoon. Ridges..........Variable 3-6 mph becoming south 6-12 mph with gusts to 20 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ350-312315- Santa Barbara County Southeastern Coast- Including the cities of Carpinteria, Goleta, Montecito, and Santa Barbara 913 AM PDT Sun Aug 31 2025 .TODAY... Sky/weather.........Partly cloudy in the morning then sunny. Max temperature.....79-87 except 89-91 in the hills. 24 hr trend......Up 6. Min humidity........55-70 percent. 24 hr trend......Down 4. 20-foot winds.......Variable 3-6 mph becoming southwest 5-10 mph in the afternoon. Marine layer........500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear in the evening then partly cloudy. Min temperature.....58-67. Max humidity........65-85 percent. 20-foot winds.......Variable 3-6 mph. CWR (>0.10 in)......0 percent. .LABOR DAY... Sky/weather.........Partly cloudy in the morning then sunny. Max temperature.....77-85 except 88-90 in the hills. Min humidity........40-60 percent. 20-foot winds.......Variable 3-6 mph becoming southwest 5-10 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ349-351-312315- Santa Barbara County Southwestern Coast- Santa Ynez Mountains Western Range- Including the cities of El Capitan State Beach, Gaviota, Jalama Beach, Refugio State Beach, and San Marcos Pass 913 AM PDT Sun Aug 31 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....78-87 except 89-94 warmer hills. 24 hr trend......Up 4. Min humidity........35-55 percent. 24 hr trend......Little change. 20-foot winds.......East 5-10 mph becoming variable 3-6 mph in the afternoon. Marine layer........500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....55-65 except 71-76 warmer hills. Max humidity........60-80 percent except 30-45 percent in the hills. 20-foot winds.......Northwest 8-15 mph with gusts to 25 mph early becoming northeast 6-12 mph. CWR (>0.10 in)......0 percent. .LABOR DAY... Sky/weather.........Sunny. Max temperature.....77-86 except 88-93 warmer hills. Min humidity........40-55 percent except 25-35 percent in the hills. 20-foot winds.......Variable 3-6 mph becoming southwest 5-10 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ340-341-346>348-312315- San Luis Obispo County Beaches- San Luis Obispo County Inland Central Coast- Santa Barbara County Central Coast Beaches- Santa Barbara County Inland Central Coast-Santa Ynez Valley- 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, Santa Maria, Lake Cachuma, Los Olivos, Santa Ynez, and Solvang 913 AM PDT Sun Aug 31 2025 .TODAY... Sky/weather.........Partly cloudy in the morning then sunny. Max temperature.....78-85 beaches to 91-101 inland. 24 hr trend......Up 10. Min humidity........45-55 percent beaches to 15-25 percent inland and hills. 24 hr trend......Down 14. 20-foot winds.......Variable 3-6 mph becoming west 6-12 mph with gusts to 20 mph in the afternoon, except northeast 10-15 mph with gusts to 25 mph in the hills and canyons. Marine layer........500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....56-65. Max humidity........65-85 percent except 30-50 percent in the hills. 20-foot winds.......West 5-10 mph early becoming variable 3-6 mph. CWR (>0.10 in)......0 percent. .LABOR DAY... Sky/weather.........Sunny. Max temperature.....75-82 beaches to 87-97 inland. Min humidity........55-65 percent beaches to 20-30 percent inland. 20-foot winds.......Variable 3-6 mph becoming west 6-12 mph with gusts to 20 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ342-343-312315- Santa Lucia Mountains-Southern Salinas Valley- Including the cities of Hearst Castle, Irish Hills, Atascadero, Lake Nacimiento, Paso Robles, San Miguel, and Templeton 913 AM PDT Sun Aug 31 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....97-107 except 85-90 closer to the coast. 24 hr trend......Up 4. Min humidity........15-25 percent except 30-45 percent closer to the coast. 24 hr trend......Little change. 20-foot winds....... Valleys.........Northeast 5-10 mph becoming variable 3-6 mph in the afternoon. Ridges..........Northeast 5-10 mph becoming variable 3-6 mph in the afternoon. Marine layer........500 ft asl. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....55-64 except 68-73 warmer hills. Max humidity........35-55 percent except 55-65 percent colder valleys and slopes. 20-foot winds....... Valleys.........West 5-10 mph in the evening becoming variable 3-6 mph. Ridges..........West 5-10 mph in the evening becoming variable 3-6 mph. CWR (>0.10 in)......0 percent. .LABOR DAY... Sky/weather.........Sunny. Max temperature.....93-103 except 81-86 closer to the coast. Min humidity........10-25 percent except 30-40 percent closer to the coast. 20-foot winds....... Valleys.........Variable 3-6 mph becoming west 6-12 mph in the afternoon. Ridges..........Variable 3-6 mph becoming west 6-12 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ345-353-312315- San Luis Obispo County Mountains- Santa Barbara County Interior Mountains- Including the cities of Caliente Range, La Panza Range, Santa Margarita Lake, Big Pine Mountain, Figueroa Mountain, and San Rafael Mountain 913 AM PDT Sun Aug 31 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....96-106 low elevations to 85-92 higher elevations. 24 hr trend......Little change. Min humidity........12-25 percent. 24 hr trend......Little change. 20-foot winds....... Valleys.........East 8-15 mph with gusts to 25 mph becoming northwest 5-10 mph in the afternoon. Ridges..........East 8-15 mph with gusts to 25 mph becoming northwest 5-10 mph in the afternoon. Marine layer........None. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....69-78 except 59-64 colder valleys and slopes. Max humidity........30-50 percent. 20-foot winds....... Valleys.........West 5-10 mph in the evening becoming variable 3-6 mph. Ridges..........West 5-10 mph in the evening becoming variable 3-6 mph. CWR (>0.10 in)......0 percent. .LABOR DAY... Sky/weather.........Sunny. Max temperature.....96-104 low elevations to 86-94 higher elevations. Min humidity........10-20 percent. 20-foot winds....... Valleys.........East 5-10 mph becoming southwest in the afternoon. Ridges..........East 5-10 mph becoming southwest in the afternoon. CWR (>0.10 in)......0 percent. $$ CAZ238-344-312315- Cuyama Valley-San Luis Obispo County Interior Valleys- Including the cities of Carrizo Plain, Creston, and Shandon 913 AM PDT Sun Aug 31 2025 .TODAY... Sky/weather.........Sunny. Max temperature.....98-106 except 93-95 colder hills. 24 hr trend......Up 6. Min humidity........15-20 percent. 24 hr trend......Little change. 20-foot winds.......East 5-10 mph becoming north 5-10 mph in the afternoon. Marine layer........None. CWR (>0.10 in)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....56-65 except 67-72 in the hills. Max humidity........30-50 percent. 20-foot winds.......West 6-12 mph with gusts to 20 mph in the evening becoming variable 3-6 mph. CWR (>0.10 in)......0 percent. .LABOR DAY... Sky/weather.........Sunny. Max temperature.....95-105. Min humidity........8-15 percent. 20-foot winds.......Variable 3-6 mph becoming north 5-10 mph in the afternoon. CWR (>0.10 in)......0 percent. $$ .Extended... ...Coasts/Valleys Including the Santa Monica Range... .TUESDAY...Partly cloudy. Patchy fog in the morning. Slight chance of showers and thunderstorms. Lows in the mid 50s to mid 70s. Highs from the mid 70s to around 80 at the beaches to 95 to 105 inland. Northwest winds 8 to 15 mph. .WEDNESDAY...Clear except patchy night through morning low clouds and fog. Lows in the mid 50s to lower 70s. Highs from the lower to mid 70s at the beaches to 93 to 103 inland. Northwest winds 8 to 15 mph. .THURSDAY...Clear except night through morning low clouds and fog. Lows in the mid 50s to around 70. Highs from the mid 60s to lower 70s at the beaches to the upper 80s to mid 90s inland. Northwest winds 8 to 15 mph. ...Mountains / Los Padres and Angeles National Forests... .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows from the upper 60s to mid 70s at low elevations to the mid 50s to lower 60s in colder valleys and peaks. Highs from 93 to 103 at low elevations to the lower to mid 80s at high elevations. North winds 6 to 12 mph. .WEDNESDAY...Clear. Lows from the upper 60s to mid 70s at low elevations to the mid 50s to around 60 in colder valleys and peaks. Highs from 91 to 101 at low elevations to the upper 70s to mid 80s at high elevations. North winds 6 to 12 mph. .THURSDAY...Clear. Lows from the mid 60s to mid 70s at low elevations to the mid 50s to around 60 in colder valleys and peaks. Highs from the upper 80s to mid 90s at low elevations to the mid 70s to lower 80s at high elevations. North winds 6 to 12 mph. ...Antelope Valley... .TUESDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the mid 60s to mid 70s. Highs 98 to 104. Southwest winds 8 to 15 mph. .WEDNESDAY...Clear. Slight chance of showers and thunderstorms. Lows in the mid 60s to mid 70s. Highs 98 to 102. Southwest winds 8 to 15 mph. .THURSDAY...Clear. Slight chance of showers and thunderstorms. Lows in the mid 60s to mid 70s. Highs 94 to 100. Southwest winds 10 to 20 mph with gusts to 30 mph. $$ Gomberg WWW.WEATHER.GOV/LOSANGELES