textproduct: Austin/San Antonio

KEY MESSAGES

Updated at 558 AM CDT Sat Aug 8 2026

- Temperatures to remain near or just above normal through the next seven days.

- Most areas remain dry, with only a low chance for some afternoon convection in and near the Coastal Plains.

SHORT TERM

(Today through Sunday) Issued at 1242 AM CDT Sat Aug 8 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 stagnant weather pattern will remain in place. Expect another hot and mainly dry day today with high temperatures about the same as Friday. 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. The upper ridge will be weak enough to allow isolated showers and thunderstorms to form over the Coastal Plains and move inland. Models have not done a very good job of forecasting the how far inland convection has made it the last couple of days, and we have expanded POPs closer to I-35 than any of the models are showing for today and tomorrow. Expect Sunday to be about the same as today.

LONG TERM

(Sunday night through Friday) Issued at 1242 AM CDT Sat Aug 8 2026

Monday the upper ridge will begin to shift back toward the southeast. Movement will be very slow, Monday will be very similar to Sunday. High temperatures will stay hot and near normal and a few spots in the Coastal Plains could briefly reach Heat Advisory criteria. A few showers or thunderstorms could move over the Coastal Plains, but the inland advance will be limited by height rises to the west. As the ridge continues to shift back toward the southeast, rain chances will come to an end Tuesday. Temperatures will creep up a bit into the middle of next week. The higher temperatures combined with the humidity may produce Heat Advisory criteria across the area south of I-10 and east of I-37.

AVIATION

(12Z TAFS) Issued at 558 AM CDT Sat Aug 8 2026

Well decoupled winds and a weak gradient have the winds light and variable over the San Antonio area. This has allowed the low stratus forming to be mostly scattered with only a few pockets of BKN noted on nighttime microphysics satellite loop. A few periods of BKN should take shape after the sun comes up and straightens out the wind direction so will offer up a couple hours of TEMPO CIGS for SAT and SSF, leaving the other two terminals as VFR through the period. More afternoon convection is expected to help boost an early evening sea-breeze, but low coverage doesn't warrant mention in the TAFs just yet. MOS guidance shows another decoupled night tonight so will leave all TAFs VFR for early Sunday.

PRELIMINARY POINT TEMPS/POPS

Austin Camp Mabry 98 77 98 77 / 10 10 10 0 Austin Bergstrom Intl Airport 99 77 98 77 / 10 10 10 0 New Braunfels Muni Airport 98 75 97 75 / 10 10 10 0 Burnet Muni Airport 97 74 96 74 / 10 10 0 0 Del Rio Intl Airport 98 77 99 78 / 0 0 0 0 Georgetown Muni Airport 98 76 97 76 / 10 10 10 0 Hondo Muni Airport 96 74 96 74 / 0 10 0 0 San Marcos Muni Airport 98 75 98 76 / 10 10 10 0 La Grange - Fayette Regional 97 76 96 76 / 20 10 20 0 San Antonio Intl Airport 97 77 97 77 / 10 10 10 0 Stinson Muni Airport 98 77 98 77 / 10 10 10 0

EWX WATCHES/WARNINGS/ADVISORIES

None.