textproduct: Austin/San Antonio

KEY MESSAGES

- Above average temperatures today through Saturday, then below average Easter Sunday through Tuesday.

- Rain chances Wednesday night into Thursday and Friday night through much of the weekend.

SHORT TERM

(Today through Wednesday) Issued at 1210 AM CDT Tue Mar 31 2026

A moist southerly lower level flow along with daytime heating/mixing maintains a pattern of low clouds overnight into morning eroding to mostly sunny to partly cloudy skies in the afternoon. A lower level thermal ridging continues the well above average temperatures while a capping inversion keeps rain out of the forecast. However, can't rule out an isolated shower or thunderstorm moving off the dryline and the Serranias del Burro, then drifting into Val Verde County on a weak zonal flow aloft early this evening and late Wednesday afternoon. Some streamer showers are also possible near the Coastal Plains on Wednesday.

LONG TERM

(Wednesday night through Monday) Issued at 1210 AM CDT Tue Mar 31 2026

Models/ensembles remain on track with two periods of rain chances. The first will be Wednesday night into Thursday when a mid/upper level trough moving over the Plains sends the dryline east toward our area. Although the dryline makes little or no progress into our area, it will generate a broken line of showers and thunderstorms. Then, steering flow aloft takes the line over the Edwards Plateau Wednesday evening, Hill Country Wednesday night, and I-35 corridor eastward on Thursday. Can't rule out a few strong and perhaps one or two severe storms due to adequate instability and shear. Fair weather is likely the rest of Thursday into Friday on brief mid/upper level ridging.

The second period occurs when a stronger mid/upper level trough moves over the Plains on Saturday bringing a cold front with it. Showers and thunderstorms develop Friday night and continue through Saturday evening. Lingering upper level troughiness may allow for showers and thunderstorms to continue through Sunday evening and possibly early Monday, though trends have been for drier on Sunday into Monday. Similar to the first round, a few strong to perhaps severe storms are possible. Locally heavy rains are also possible if storms repeat over the same areas. Then, fair weather is likely early next week on mid/upper level ridging.

A lower level thermal ridge keeps temperatures well above average through Saturday. In wake of the frontal passage, cold advection leads to below average temperatures on Easter Sunday into Monday.

AVIATION

(12Z TAFS) Issued at 535 AM CDT Tue Mar 31 2026

Low clouds are in place for many with MVFR ceilings bouncing of between 1500 and 2500 feet The low clouds expand westward beyond sunrise this morning. KDRT should expect for the MVFR ceilings starting by around 14Z. VFR conditions then return into the afternoon by around 17Z as the low clouds mix out and the cloud bases gradually rise. Expect for the moderate to breezy south to southeasterly winds to continue through the period. Speeds will trend the lowest during the overnight into the early morning periods. The gusts become highest through the afternoon into the evening time frames around 25 kt. Low clouds will make a return overnight into Wednesday morning with another round of MVFR ceilings expected.

CLIMATE

Issued at 1210 AM CDT Tue Mar 31 2026

Record High Temperatures

Mar 31 (Tue) Apr 1 (Wed) Austin Bergstrom: 89 (1974) 92 (2011) Austin Camp Mabry: 90 (1946, 1974, 2023) 93 (2011) San Antonio Intl: 93 (1929, 1946) 93 (1939, 2011) Del Rio Intl: 100 (1913) 99 (2024)

PRELIMINARY POINT TEMPS/POPS

Austin Camp Mabry 90 68 91 69 / 0 0 0 30 Austin Bergstrom Intl Airport 89 67 91 68 / 0 0 10 30 New Braunfels Muni Airport 88 65 90 67 / 0 0 10 20 Burnet Muni Airport 86 65 87 66 / 0 0 0 50 Del Rio Intl Airport 90 68 93 69 / 10 0 20 40 Georgetown Muni Airport 88 66 91 67 / 0 0 0 40 Hondo Muni Airport 90 64 92 65 / 0 0 0 20 San Marcos Muni Airport 89 66 91 67 / 0 0 10 20 La Grange - Fayette Regional 88 68 89 69 / 10 0 10 20 San Antonio Intl Airport 88 67 91 68 / 0 0 10 20 Stinson Muni Airport 90 68 92 69 / 0 0 10 20

EWX WATCHES/WARNINGS/ADVISORIES

None.