textproduct: Austin/San Antonio

KEY MESSAGES

- Isolated showers and storms today and Saturday.

- Humid conditions will result in afternoon maximum heat indices in the 100 to near 105 degree range for most of the region through Sunday.

- Early week cold front brings an increase of rain chances and slightly cooler temperatures for next week.

SHORT TERM

(Today through Saturday) Issued at 141 AM CDT Fri Jun 12 2026

The isolated streamer showers that have developed over the past couple of mornings are expected to once again develop early this morning. Hi-res models continue to show slightly better coverage of showers and possibly an embedded thunderstorm developing later on this afternoon. Models also show these storms diminishing fairly quickly as we near sunset to provide a mostly dry overnight hours.

Upper ridge axis shifts Sunday afternoon to allow for shower and thunderstorm chances to increase and expand. Chances during the day will be mainly focused in the eastern half of the CWA before expanding westward to encompass the entire CWA overnight.

The heat continues through Sunday with afternoon maximum temperatures in the 90s and heat indices in the 100 to 105 degree range. Overnight lows each night dip down into the mid to upper 70s.

LONG TERM

(Saturday night through Thursday) Issued at 141 AM CDT Fri Jun 12 2026

A rare June cold front approaches South Central Texas on Monday, bringing with it scattered showers and thunderstorms Monday afternoon and night. An impressive mid-level trough for mid-June will dive southward out of southern Canada into the Upper Midwest, with a shortwave embedded within this trough moving through north Texas. This will send the aforementioned front through the service area, resulting in showers and thunderstorms. The threat for severe storms looks low at this time, as limited shear and limited cold air aloft will mean more of a heavy rain threat with any storms that roll through. Gusty winds and locally heavy rainfall will be the primary concern Monday afternoon through Tuesday morning. WPC does place much of the area in a Marginal risk (Level 1 of 4) for excessive rainfall on Monday, with the Coastal Plains in a Slight risk (Level 2 of 4) for excessive rainfall.

Lingering showers and thunderstorms are expected Tuesday morning before afternoon clearing. Slightly cooler temperatures are also expected Tuesday with highs in the 80s following the passage of the front. The "cooldown" won't last long though as shortwave ridging returns Wednesday and temperatures climb back into the 90s. Thursday and Friday could feature a return of more tropical moisture from a disturbance over the western Gulf, but only time will tell if this moisture works into our region.

AVIATION

(12Z TAFS) Issued at 546 AM CDT Fri Jun 12 2026

Primary change was the introduce VCSH at SAT and SSF and to incorporate MVFR ceilings developing again tomorrow morning before 09Z at all sites. Otherwise, mostly the same forecast with minor tweaks to wind speeds.

PRELIMINARY POINT TEMPS/POPS

Austin Camp Mabry 93 76 93 77 / 20 0 20 0 Austin Bergstrom Intl Airport 93 76 93 77 / 20 0 20 0 New Braunfels Muni Airport 91 74 92 75 / 20 0 20 0 Burnet Muni Airport 91 74 92 75 / 10 0 0 0 Del Rio Intl Airport 96 76 97 78 / 10 0 0 0 Georgetown Muni Airport 93 75 93 76 / 20 0 10 0 Hondo Muni Airport 92 75 92 75 / 20 0 10 0 San Marcos Muni Airport 92 75 93 76 / 20 0 20 0 La Grange - Fayette Regional 93 76 93 77 / 20 0 20 0 San Antonio Intl Airport 92 76 92 77 / 20 0 20 10 Stinson Muni Airport 92 76 92 76 / 30 0 20 0

EWX WATCHES/WARNINGS/ADVISORIES

None.