textproduct: Austin/San Antonio

KEY MESSAGES

Updated at 1246 PM CDT Wed Jul 8 2026

- Low rain chances for the rest of today and Thursday, but increasing again Friday through at least middle next week

- Daytime heat mainly in the 90s continues into next week with heat index values reaching into the 100-107 range for many areas.

SHORT TERM

(Tonight through Thursday night) Issued at 1246 PM CDT Wed Jul 8 2026

Mostly sunny to partly cloudy skies are forecast for South Central Texas for the rest of this afternoon. Highs are anticipated to reach the mid to upper 90s for the most part. Heat index values are likely to range from 100 to 107. Rain chances are limited across the local area through this evening. However, a few locations along and east of Highway 281 could experience a quick shower or thunderstorm late this afternoon.

A clear night is in store across South Central Texas with overnight lows in 70s. Drier weather conditions are forecast for South Central Texas on Thursday with less than 10 percent probability of rain. Highs are forecast to climb into the mid to upper 90s across most locations with heat index values in the 100 to 107 along and east of the Interstate 35 corridor. Another clear night is forecast for Thursday night with overnight lows in the mid 70s for the most part.

LONG TERM

(Friday through next Wednesday) Issued at 1246 PM CDT Wed Jul 8 2026

A weather pattern change takes place on Friday and continues into Saturday. The subtropical ridge stays over the four corners region while an inverted upper level trough lingers over the Rio Grande Plains through the period. With pwats at 2+ inches over the Coastal Plains, Interstate 35, and the Hill Country, we are forecasting scattered shower and thunderstorm activity (30 to 50 percent probability of rain) across those areas. Slow moving storms could produce heavy downpours and 1 to 2 inches of rainfall in a short period of time. Also, shower and storm activity could shift to the Rio Grande Plains and southern Edwards Plateau late afternoons into the early evenings through the period. As far as the day time high temperatures for Friday and Saturday, they remain the in the 90s with heat index values ranging from 100 to 107 along and east of the I-35 corridor.

Weather conditions continue unsettled on Sunday into the middle of next week with rain chances for most of South Central Texas as outflow boundaries move from central Texas into the local area, a slow moving inverted upper level trough, and sea breeze enhanced convective activity. Dry weather returns on Thursday as the subtropical high takes control.

AVIATION

(18Z TAFS) Issued at 1215 PM CDT Wed Jul 8 2026

Persistent south to southeasterly flow is expected through the period. VFR ceilings look like a good bet through this forecast cycle, however, there is an outside shot at a brief hour or two of MVFR ceilings at AUS, SAT, and SSF tomorrow morning. For now, it is not in the TAF as confidence is too low to include. Some wind gusts up and over 20 kts are expected on Thursday as southerly flow starts to ramp up. No other big changes for this forecast period.

PRELIMINARY POINT TEMPS/POPS

Austin Camp Mabry 77 98 77 95 / 10 0 0 20 Austin Bergstrom Intl Airport 77 97 77 95 / 10 0 0 20 New Braunfels Muni Airport 75 97 76 94 / 0 0 0 30 Burnet Muni Airport 74 96 73 94 / 10 0 0 10 Del Rio Intl Airport 76 97 76 96 / 0 0 0 0 Georgetown Muni Airport 77 98 76 95 / 10 0 0 10 Hondo Muni Airport 74 95 75 93 / 0 0 0 20 San Marcos Muni Airport 75 97 76 95 / 10 0 0 20 La Grange - Fayette Regional 77 97 77 95 / 0 10 0 20 San Antonio Intl Airport 76 95 76 93 / 0 0 0 30 Stinson Muni Airport 76 95 77 93 / 0 0 0 30

EWX WATCHES/WARNINGS/ADVISORIES

None.