textproduct: Austin/San Antonio

KEY MESSAGES

Updated at 532 AM CDT Mon Jul 27 2026

- Hot and dry weather is expected through the end of July.

- Rising temperatures this week may lead to increasing heat risks.

SHORT TERM

(Today through Tuesday) Issued at 1216 AM CDT Mon Jul 27 2026

Water vapor imagery and upper air observations show the subtropical ridge commandeering our regional weather remains strong. Surface high over the Gulf will move slightly west today under weak easterly flow aloft. This brings a marginally more conducive wind direction for hotter temperatures. Thus, highs today are expected to be about 1-2 degrees warmer with peak heat indices in the 101 to 107 range over the Coastal and Rio Grande Plains and the I-35 corridor. Some cirrus may uneventfully cycle over the area as the ridge continues to spin about. No rain is forecast. Tuesday is expected be similarly hot and dry. Conditions both days may briefly reach Heat Advisory criteria for localized spots in the Coastal Plains, but at this time the lower coverage and longevity of higher heat for Monday and Tuesday suggests low confidence in Heat Advisory issuance for today or tomorrow.

LONG TERM

(Tuesday night through Sunday) Issued at 1216 AM CDT Mon Jul 27 2026

Hot and rain-free weather continues through the week with the subtropical ridge staying near the area. Temperatures are forecast to steadily rise as the airmass warms, with highs entering the 100- 105 range in more widespread fashion by late week. Heat indices may climb more into the 105-110 range especially at lower elevations mid to late week. This could necessitate issuance of heat related products.

Hot and dry conditions may continue into Saturday, but a shift in the weather pattern ushered by the ridging moving farther favors a change in conditions over South Central Texas this weekend. As the eastern periphery of the ridge lines up with the Plains, northerly flow will be favored aloft. This may bring a weak front or trough into our area this weekend, accompanied by rain chances and a potential cooldown to below average temperatures towards the start of August if the front remains intact.

AVIATION

(12Z TAFS) Issued at 532 AM CDT Mon Jul 27 2026

We are not seeing much low cloud development this morning and have taken the low ceilings out of the TAFs. All terminals will be VFR today and tonight. While we have kept ceilings out of the TAFs for Tuesday morning, there is a low chance that ceilings develop in the Austin and San Antonio areas. DRT will be VFR for the entire period.

PRELIMINARY POINT TEMPS/POPS

Austin Camp Mabry 98 76 99 77 / 0 0 0 0 Austin Bergstrom Intl Airport 98 76 99 77 / 0 0 0 0 New Braunfels Muni Airport 98 75 99 76 / 0 0 0 0 Burnet Muni Airport 97 73 97 73 / 0 0 0 0 Del Rio Intl Airport 101 78 101 79 / 0 0 0 0 Georgetown Muni Airport 98 75 98 76 / 0 0 0 0 Hondo Muni Airport 97 74 98 76 / 0 0 0 0 San Marcos Muni Airport 98 74 99 76 / 0 0 0 0 La Grange - Fayette Regional 100 76 100 77 / 0 0 0 0 San Antonio Intl Airport 98 76 99 77 / 0 0 0 0 Stinson Muni Airport 98 76 99 78 / 0 0 0 0

EWX WATCHES/WARNINGS/ADVISORIES

None.