Downtown Los Angeles is starting calm and comfortable, with a mild Monday morning in the mid-50s under mostly sunny skies. By this afternoon, temperatures should top out near 76F with light winds, kicking off a warming trend that will build through the week.
Afternoon Warmup And Wind On The Way
According to NWS Los Angeles/Oxnard, the real heat shows up Tuesday, when highs climb into the 80s, then make a run at 90F on Wednesday as offshore Santa Ana winds strengthen. Gusts are expected to reach 25 to 40 mph in the usual wind-prone valleys and up to 50 mph in the mountains.
Out on the water, coastal hazards are also in play. Small Craft Advisories and a High Surf Advisory are posted for some coastal waters and beaches, so boaters and beachgoers should build extra caution into their plans. Tonight will be cooler, with lows dipping into the low 50s, before the stronger offshore flow really builds Tuesday into Wednesday. The hottest readings will favor inland spots and valley pockets during the midday and afternoon hours.
Clouds, Fog And Where They Could Linger
Early Monday, some low clouds or pockets of dense fog may still hug the coast, but most neighborhoods should clear out by late morning and stay sunny through the afternoon. Light south or northwest winds today will give way to a more persistent offshore flow Tuesday and Wednesday that will dry out and heat up inland areas.
If you live in the hills or canyons, it is a good time to secure loose outdoor items and be ready for those stronger gusts later in the week.
Legal Implications
A mandatory No-Burn Day is in effect through about 6 p.m. Monday, putting a legal lid on many fireplaces and fire pits. The South Coast AQMD bans burning wood, pellets, and manufactured fire logs during No-Burn Days in order to limit particle pollution. According to South Coast AQMD, a few exemptions apply, including homes above 3,000 feet, households without natural gas service, and residences that rely on wood as their sole heat source. Complaints can be filed at 1-800-CUT-SMOG.
People who are sensitive to air quality should avoid prolonged outdoor exertion and, when possible, run air purifiers or air conditioning with windows closed.
Plan Ahead
For outdoor plans, aim for earlier in the day and try to avoid long, strenuous activity during the peak heat on Tuesday and Wednesday. Keep water, a hat, and sun protection handy.
If your plans involve the beach or marina, keep a close eye on changing conditions and check official advisories before you head out.
