textproduct: Austin/San Antonio

..New SHORT TERM, LONG TERM, AVIATION

- Persistent dry conditions with near normal temperatures through the rest of June.

- Elevated heat index values late week into the weekend, especially along and east of I-35 and across most the Rio Grande Plains.

SHORT TERM

(Today through Friday) Issued at 1240 AM CDT Thu Jun 25 2026

Dry summer weather continues to roll along as mid-level ridging squats over northern Mexico and the southern US bringing temperatures near average for late June. Expect the usual cycle of morning clouds giving way to afternoon sunshine, leading to highs in the mid-90s for most and in the upper 90s on the Rio Grande. A breezy southerly wind will maintain milky skies as the Saharan Air Layer remains over the region. Friday should play out similarly, though temperatures are forecast to increase by 1-2 degrees as the mid-level ridging and attendant warmth become more centralized over South-Central Texas. Accompanying peak heat indices during the afternoons are expected to range from the upper 90s to low 100s for most of the area.

LONG TERM

(Friday night through Wednesday) Issued at 1240 AM CDT Thu Jun 25 2026

Persistent ridging over Texas and steady plumes of the Saharan Air Layer over the Caribbean and Gulf should keep conditions warm and dry through the weekend and into next week. Afternoon highs should stick around the mid to upper 90s with lows in the mid to upper 70s across much of the area. The Del Rio area will likely rack up a few more days with temperatures 100 before the end of June. Sufficient daytime mixing of moisture each afternoon should keep heat indices below advisory criteria, but values are expected to regularly approach or reach the triple digits and bring minor to moderate levels of heat risk. A slight increase in tropical moisture associated with a weak inverted trough in the Bay of Campeche Sunday may help enable the highest heat indices of the forecast period with peak values in the 103-106 range, but otherwise little variation in the weather is expected through the end of June. Breezy wind each afternoon and evening with occasional gusts in the 20-30 mph range (somewhat breezier than usual for the summer) will subside slightly each night.

AVIATION

(06Z TAFS) Issued at 1240 AM CDT Thu Jun 25 2026

An active westerly pattern over OK/TX Panhandle region continues to tighten the pressure gradient and wind speed at the surface with mid afternoon winds to around 25 knots. Persistent breezy and gusty S winds should keep a nominal amount of shallow Gulf moisture in place with just enough for a few hours of MVFR CIGs for mainly the I-35 terminals. Will show mainly 10Z to 16Z at SAT/SSF with just a TEMPO period for AUS, and this should be roughly the case again for early Friday morning as well.

PRELIMINARY POINT TEMPS/POPS

Austin Camp Mabry 76 96 77 97 / 0 0 0 0 Austin Bergstrom Intl Airport 76 96 77 97 / 0 0 0 0 New Braunfels Muni Airport 74 95 75 95 / 0 0 0 0 Burnet Muni Airport 74 94 73 95 / 0 0 0 0 Del Rio Intl Airport 77 100 77 101 / 0 0 0 0 Georgetown Muni Airport 75 96 76 97 / 0 0 0 0 Hondo Muni Airport 73 94 73 94 / 0 0 0 0 San Marcos Muni Airport 75 96 75 96 / 0 0 0 0 La Grange - Fayette Regional 76 95 77 96 / 0 0 0 0 San Antonio Intl Airport 75 94 75 95 / 0 0 0 0 Stinson Muni Airport 75 94 76 95 / 0 0 0 0

EWX WATCHES/WARNINGS/ADVISORIES

None.