textproduct: Austin/San Antonio

KEY MESSAGES

Updated at 507 AM CDT Thu Aug 6 2026

- Continued hot and dry for most of South-Central Texas for the next seven days.

- A few spots in the Coastal Plains could reach Heat Advisory criteria briefly during the afternoon today and tomorrow.

- There will be a slight chance for showers or thunderstorms over the Coastal Plains during the afternoon today and tomorrow.

SHORT TERM

(Today through Friday) Issued at 129 AM CDT Thu Aug 6 2026

The subtropical ridge is centered near the Four Corners region this evening with weak anticyclonic flow over Texas. High pressure over the Gulf is producing southeasterly flow in the low levels. The airmass over South-Central Texas remains hot and moist. In the short term the the center of the upper ridge will continue to drift to the north. Expect another hot and mainly dry day with high temperatures about the same as Tuesday. The combination of heat and humidity may bring a few spots over the Coastal Plains to Heat Advisory levels for a couple of hours, but we don't expect enough coverage to issue an advisory. As the upper high moves a little farther away to the north there will be some minor height falls over Texas. This will result in some very low POPs over the Coastal Plains this afternoon. Still most places will be dry. High temperatures will be a degree or two lower Friday as the upper ridge moves farther away. There will continue to be slight chances for rain over the Coastal Plains Friday afternoon.

LONG TERM

(Friday night through Wednesday) Issued at 129 AM CDT Thu Aug 6 2026

The upper ridge will remain near the Four Corners region through Monday. This will lead to a fairly stagnant forecast. High temperatures will stay hot and near normal each day Saturday through Wednesday. Humidity will remain low enough to keep heat indices below Heat Advisory criteria, however a few spots in the Coastal Plains could briefly reach criteria each afternoon. With upper ridge farther north a few showers or thunderstorms could move over the Coastal Plains each afternoon Sunday and Monday, but chances will be mostly less than 20%. As the ridge shifts back toward the southeast, rain chances will come to an end.

AVIATION

(12Z TAFS) Issued at 537 AM CDT Thu Aug 6 2026

Only change needed was to include development of MVFR stratus once again tonight into tomorrow morning at AUS, SAT, and SSF. Confidence is lower at DRT, so opted for a scattered layer for now. Otherwise, the forecast remains mostly the same with MVFR cigs this morning, lifting to VFR by 16Z then winds picking up to 10-15 kts through the afternoon hours before turning lighter after sunset.

PRELIMINARY POINT TEMPS/POPS

Austin Camp Mabry 98 76 97 76 / 0 0 0 0 Austin Bergstrom Intl Airport 99 77 97 76 / 0 0 0 0 New Braunfels Muni Airport 99 76 97 75 / 10 10 0 0 Burnet Muni Airport 97 74 96 73 / 0 0 0 0 Del Rio Intl Airport 100 77 99 77 / 0 0 0 0 Georgetown Muni Airport 98 76 96 75 / 0 0 0 0 Hondo Muni Airport 97 75 96 74 / 0 0 0 0 San Marcos Muni Airport 100 76 98 74 / 10 10 0 0 La Grange - Fayette Regional 98 76 96 75 / 10 10 10 0 San Antonio Intl Airport 98 77 97 76 / 0 10 0 0 Stinson Muni Airport 100 77 98 77 / 0 0 0 0

EWX WATCHES/WARNINGS/ADVISORIES

None.