Los Angeles/ Weather & Environment

Downtown L.A. Set to Roast as Heat Advisory Hits Before 98-Degree Wednesday

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Published on September 08, 2026
Downtown L.A. Set to Roast as Heat Advisory Hits Before 98-Degree WednesdaySource: Unsplash/Dillon Shook

Downtown Los Angeles is waking up Tuesday near 75 degrees, but the mild start will give way to a hot, humid afternoon around 95. A Heat Advisory begins at 10 a.m. Tuesday and remains in effect through 8 p.m. Thursday, with the toughest conditions expected Wednesday.

A Brief Shower Chance Before The Heat Takes Over

A slight chance of rain showers will linger through Tuesday afternoon, with precipitation chances reaching about 20% before dropping later in the day. Most of the day should still be mostly sunny, though any shower or thunderstorm could bring a brief heavy downpour, lightning or locally gusty winds, according to the National Weather Service.

Wednesday Looks Like The Toughest Day

Tuesday night will stay unusually warm, with a low near 73 and heat index values as high as 106. Wednesday is forecast to reach 98 degrees, while the heat index could climb to 116 as humidity adds to the discomfort.

The latest forecast is a sharper escalation from Monday’s outlook, which called for a cooler Tuesday and a Wednesday high closer to 95, as previously reported by Hoodline. The advisory includes Downtown Los Angeles, nearby valleys, beaches and foothill communities, where temperatures are expected to run well above normal.

Heat Relief Arrives Friday

Temperatures should ease to about 92 Thursday, then fall to 87 Friday and the mid-80s over the weekend. Saturday and Sunday are expected to be sunny, with highs near 84 and 83 and overnight lows dropping into the mid-60s.

Plan Around The Afternoon Heat

The National Weather Service recommends drinking plenty of fluids, staying in air conditioning when possible, avoiding direct sun and checking on relatives and neighbors who may be more vulnerable to heat illness. Beachgoers should also be cautious Tuesday, as high surf, strong rip currents and coastal flooding around high tide remain concerns along exposed Los Angeles County beaches.