Austin/ Weather & Environment

Austin Goes From Sweaters to Sweat as Late-Week Heat Roars Back

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Published on October 18, 2026
Austin Goes From Sweaters to Sweat as Late-Week Heat Roars BackSource: Google Street View

Austin is waking Sunday to clear skies, a crisp start near 50 degrees and almost no wind, but the sweater weather will not stick around for long. The city should warm to about 75 under sunny skies, with no rain expected and only a light northeast breeze.

Sunny Sunday Sets Up A Quiet Outdoor Day

Temperatures will climb through the 50s during the morning and reach the low to mid-70s by afternoon. Winds should stay calm to around 5 mph, making for an easy day at parks, patios and outdoor events. By Sunday night, skies will turn partly cloudy and temperatures will fall to around 53.

The National Weather Service says no watches, warnings or advisories are in effect for the Austin area, and its extended outlook keeps rain chances at zero through Friday. Saturday’s rain chance is near zero, making it a day for sunglasses, not an umbrella.

Heat Rebuilds By Midweek

Monday reaches near 78, followed by a sunny 83 Tuesday and 87 Wednesday. Thursday climbs to about 89, while Friday and Saturday top out near 89 under mostly sunny to sunny skies. Overnight lows will rise from the mid-50s early in the week to the low 60s by the weekend.

The setup marks a sharp turn from the cooler air that opened the weekend. Hoodline’s Saturday forecast had Austin starting the cooldown near 52 degrees with stronger early winds; Sunday is calmer, and the week ahead steadily shifts back toward late-summer warmth.

Light Jacket In The Morning, Short Sleeves By Afternoon

Sunday morning may feel cool enough for a light jacket, but the afternoon should be comfortable for outdoor plans. With dry weather and light winds continuing, the main planning issue is the temperature swing: start with a layer, then expect it to feel much warmer by lunchtime.

Austin-Weather & Environment