Austin/ Weather & Environment

Ozone Alert as Austin Basks in 85-Degree Fall Sizzle

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Published on October 21, 2026
Ozone Alert as Austin Basks in 85-Degree Fall SizzleSource: Quintin Soloviev / Wikimedia Commons

Austin started Wednesday, October 21, under clear skies and temperatures in the mid-50s, but the city is headed for a classic warm fall afternoon. Sunshine will push temperatures to about 85 degrees, with light northeast winds and no rain expected. The stretch of dry weather is set to continue through the weekend, making this a good week for outdoor plans—just keep an eye on the air.

Sunny Skies Bring A Fast Warmup

Temperatures should climb through the day, peaking in the mid-80s during the afternoon. Winds will stay light at roughly 5 mph, so the heat may feel more noticeable in exposed areas despite the pleasant start.

Wednesday night will remain mostly clear, with temperatures falling to around 60 degrees. The National Weather Service expects another sunny day Thursday with a high near 86, followed by similarly warm conditions Friday and Saturday.

Air Quality Alert Wednesday

An Air Quality Alert is in effect for the Austin area Wednesday because conditions may support elevated ozone pollution. Warm sunshine and light winds can help ozone build during the afternoon, especially in urban areas.

People with breathing problems, children and older adults may want to take it easier during strenuous outdoor activity. Austin’s air-quality program also recommends reducing vehicle idling, avoiding drive-through lines when possible and choosing shared or active transportation to help limit pollution.

Rain Chances Hold Off Until Early Next Week

Saturday should stay mostly sunny with a high near 85, although east-southeast to southeast winds could gust as high as 20 mph. Sunday will be a little cooler near 82 degrees with partly sunny skies, but rain is still unlikely.

The forecast turns less settled early next week, with rain chances returning.

Austin-Weather & Environment