Austin/ Weather & Environment

Austin Sizzles: 100-Degree Heat Wave Roasts City as Storm Chances Vanish

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Published on August 10, 2026
Austin Sizzles: 100-Degree Heat Wave Roasts City as Storm Chances VanishSource: City of Austin

Austin is waking up under mostly cloudy skies Monday morning, but the clouds will not do much to slow the heat. Temperatures near 78 degrees are expected to climb toward 99, with the air feeling closer to 109 degrees during the afternoon.

Monday Storm Chance Arrives Late

Mostly sunny skies should take over through much of Monday, with a slight chance of showers and thunderstorms after 4 p.m. The chance of rain is about 20%, and south-southeast winds should stay light at 0 to 10 mph, according to the National Weather Service Austin/San Antonio.

Triple-Digit Heat Takes Over Midweek

The forecast turns hotter and drier Tuesday, when Austin could reach 101 degrees under mostly sunny skies. Wednesday and Thursday are expected to peak near 102, followed by highs around 101 Friday and 100 over the weekend, while overnight lows remain stuck in the upper 70s.

Plan Outdoor Time Carefully

With rain chances dropping close to zero after Monday and little overnight cooling, the safest bet is to schedule strenuous outdoor work for early morning or later evening. Drink water regularly, take cooling breaks, and check on people and pets who may be especially vulnerable to prolonged heat.

No heat advisory or other watches and warnings are listed for Austin Monday morning, but forecasters say heat-advisory conditions could develop later this week, particularly east of the I-35 and I-37 corridors. Conditions can change quickly, so keep checking updated forecasts before making plans in the afternoon.

Austin-Weather & Environment