Austin Faces Scorching Temperatures Amid Heat Dome

Temperatures expected to hit mid-90s twice this week as high pressure system settles over region.

Mar. 21, 2026 at 10:00am

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Austin is bracing for an early taste of summer this weekend, with temperatures forecast to reach a record-breaking 94 degrees on Saturday - the second time in a week the city has seen temperatures that high. This unseasonable heat is being driven by a heat dome, a high-pressure system that is trapping warm air and preventing rainfall, exacerbating the region's ongoing drought conditions.

Why it matters

The heat dome and resulting high temperatures are concerning for the Austin area, as they come on the heels of an already dry year. The lack of rainfall and extreme drought conditions could have significant impacts on the region's water supply, agriculture, and overall quality of life for residents.

The details

Under sunny skies and warm southerly winds, Austin's temperatures on Saturday are expected to reach 94 degrees, similar to the 97-degree reading last Sunday which set a new record for March 15. This heat is being driven by an unusually strong high-pressure system that is drawing in warm air and preventing cloud formation and rainfall. The high pressure 'dome' will keep temperatures in the 90s through at least Tuesday, with highs potentially reaching the upper 80s and low 90s even after a weak cold front moves through on Monday.

  • On March 15, Austin set a new record high temperature of 97 degrees.
  • On March 21, temperatures are forecast to reach 94 degrees.
  • Temperatures are expected to remain in the 90s through at least March 23.

The players

National Weather Service

The federal agency that monitors and forecasts weather conditions across the United States.

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What they’re saying

“By Saturday, temperatures will threaten record levels with highs in the 90s and near 100 along the Rio Grande.”

— National Weather Service

What’s next

The National Weather Service is closely monitoring the situation and will continue to provide updates on the heat dome and its impacts on the Austin area in the coming days.

The takeaway

The extreme heat and lack of rainfall driven by the heat dome pose serious challenges for the Austin region, which is already grappling with drought conditions. Residents will need to take precautions against the high temperatures and be prepared for potential water restrictions or other measures to conserve limited resources.