Hot and Getting Hotter: 108° Friday, 110° Saturday

Pasadena will roast in triple-digit heat through Monday, National Weather Service forecasters said today.

“The hottest days with this event are expected to be Friday and Saturday in most areas,” according to the NWS, which officially projected Pasadena will top out at 110 on Saturday.

“The hot temperatures lived up to their billing [Thursday] and then some as light offshore flow in the morning combined with extremely hot temperatures aloft to roast most of southern California in triple-digit heat,” the National Weather Service said Thursday. “Only the immediate coastal areas were spared the extreme heat, though even there temperatures were 5-10 degrees above normal.”

Forecasters noted that the heat wave “is coinciding exactly with the extreme heat wave in 2020, so while we may not break a lot of records with this event, it doesn’t diminish the impacts or lessen the precautions that need to be taken to stay safe. Do not do any hiking or other physical activities except very early in the day and even then use extreme caution and stay well- hydrated.”

A cooling trend is expected to begin by Monday, slowly lowering temperatures over the ensuing days, reaching normal levels by about Wednesday of next week, according to the NWS.

Due to the high heat, the South Coast Air Quality Management District issued an ozone advisory that will be in place until 8 p.m. Friday due to anticipated elevated smog levels because of the heat wave. Officials warned the public to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun and check up on relatives and neighbors.

Residents were also urged to never leave children or pets in unattended vehicles, which can reach lethal temperatures in a matter of minutes.

The hot, dry weather will also create elevated fire conditions across the mountains, valleys and deserts throughout the week.

Here is the latest National Weather Service forecast for Pasadena issued at 4:11 a.m. Friday morning:

Today: Sunny and hot, with a high near 108. North northeast wind around 5 mph becoming southwest in the afternoon.

Tonight: Mostly clear, with a low around 74. West southwest wind around 5 mph becoming east northeast in the evening.

Saturday: Sunny and hot, with a high near 110. Calm wind becoming south around 5 mph in the afternoon.

Saturday Night: Mostly clear, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.

Sunday: Sunny and hot, with a high near 106. Calm wind becoming southwest around 5 mph.

Sunday Night: Mostly clear, with a low around 70.

Monday: Sunny and hot, with a high near 105.

Monday Night: Clear, with a low around 66.

Tuesday: Sunny, with a high near 91.

Tuesday Night: Clear, with a low around 60.

Wednesday: Sunny, with a high near 86.

Wednesday Night: Mostly clear, with a low around 57.

Thursday: Sunny, with a high near 81.