Slight Break from the Heat in Pasadena, but Not for Long

Slightly cooler temperatures offer a brief ease in the heat wave that’s been baking Pasadena but the mercury is expected to tick up again later in the week, according to the National Weather Service.

Tuesday’s temperatures backed off from their recent toasty levels, enabling excessive heat warnings that have gripped the area for the past few days to be canceled.

But forecasters expect temps to inch upward again Wednesday, with another potentially dangerous heat wave is expected to arrive in Southern California by the end of the week, sending temperatures in the City of Roses up to just under triple digits.

In anticipation of the expected rising temps, the NWS issued an excessive heat watch that will be in effect in Pasadena from Friday morning through Saturday evening 

In addition, the South Coast Air Quality Management District on Tuesday extended an ozone advisory for much of the South Coast Air Basin and Coachella Valley. The advisory — which had been scheduled to expire at 8 p.m. Tuesday — now will run through 8 p.m. Saturday.

According to an AQMD statement, “Over the past few days, Air Quality Index (AQI) levels have reached Unhealthy in most inland areas and Very Unhealthy in some localized areas due to a prolonged heat wave.”

“Extreme heat will significantly increase the potential for heat-related illnesses, particularly for those working or participating in outdoor activities,” NWS forecasters warned. “… Be prepared to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances.”

Here is Pasadena’s outlook as of 3:12 a.m. Wednesday:

Today: Sunny, with a high near 93. Light south southwest wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.

Tonight: Mostly clear, with a low around 66. Southwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 15 mph.

Thursday: Sunny, with a high near 94. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

Thursday Night: Mostly clear, with a low around 67. East southeast wind around 5 mph becoming calm.

Friday: Sunny, with a high near 95. Northeast wind 5 to 15 mph becoming southwest in the morning.

Friday Night: Partly cloudy, with a low around 68.

Saturday: Mostly sunny and hot, with a high near 96.

Saturday Night: Partly cloudy, with a low around 69.

Sunday: Mostly sunny and hot, with a high near 96.

Sunday Night: Mostly clear, with a low around 67.

Monday: Mostly sunny, with a high near 95.

Monday Night: Mostly clear, with a low around 68.

Tuesday: Sunny, with a high near 95.