San Antonio, Texas 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

510
FXUS64 KEWX 251108 AAA
AFDEWX

Area Forecast Discussion...UPDATED
National Weather Service Austin/San Antonio TX
608 AM CDT Wed Mar 25 2026

...New AVIATION...

.KEY MESSAGES...

- Above normal temperatures continue through Friday, with slightly
  cooler temperatures this weekend.

- Elevated fire weather conditions possible Wednesday through
  Friday mainly over the Rio Grande plains due to low afternoon
  humidities and gusty winds.

&&

.SHORT TERM...
(Today through Thursday)
Issued at 1243 AM CDT Wed Mar 25 2026

High pressure in the mid and upper levels of the atmosphere
remains firmly anchored across northern Mexico into Texas today
and Thursday. This pattern will continue to result in dry weather
along with above normal temperatures across south central Texas.
In addition, we will see breezy south winds given a lee-side
surface trough over the plains of eastern New Mexico and high
pressure over the southeastern United States. Look for highs in
the mid 80s to lower 90s along with lows in the mid 50s to mid
60s. Some patchy morning fog is anticipated across the coastal
plains, mainly along and east of a La Grange to Karnes City line
Wednesday morning and we have added this to the forecast.

&&

.LONG TERM...
(Thursday night through Tuesday)
Issued at 1243 AM CDT Wed Mar 25 2026

An upper level trough moving across the high plains into the Great
Lakes region will flatten the above mentioned mid and upper level
ridge of high pressure on Friday. The ridge of high pressure will
continue to be our main weather feature of interest, so expect
more dry conditions and above normal temperatures on Friday. The
upper level trough will serve to dislodge some cooler air,
resulting in a cold front moving southward through the Texas
Panhandle and western Texas during the daytime hours Friday. The
leading edge of the cold front will likely move into portions of
the southern Edwards Plateau and Hill Country by late afternoon.
We will lower highs a few degrees for Friday over the mentioned
areas and will continue to monitor for a faster southward
progression of the cold front.

The cold front will continue to push southward Friday night with
some gusty north to northeast winds and cooler temperatures in
store behind the boundary. The gusty north winds will gradually
ease throughout the day on Saturday as surface high pressure
builds in from the north. Highs will range from the mid 70s to mid
80s on Saturday.

For Sunday into early next week, high pressure in the mid and
upper levels will remain the dominant weather feature across our
region. Southerly winds will return by Sunday afternoon and
continue into Tuesday. We will see a gradual warming trend along
with dry weather. There is some indication we will see a weakening
of the mid and upper level ridge as we head into the middle of
next week. This along with an approaching upper level trough may
allow for us to start seeing a little better chance for rain
across the region.

&&

.AVIATION...
(12Z TAFS)
Issued at 605 AM CDT Wed Mar 25 2026

MVFR cigs will continue along the I-35 corridor through late
morning, with VFR expected through the afternoon hours. South
winds will be gusty at times. Look for low clouds to return to the
I-35 terminals around 26/07Z and continue through Thursday
morning. We will keep the forecast VFR at DRT today as low clouds
should remain just east of the terminal. Will need to monitor for
the possibility of some low clouds and possible MVFR cigs Thursday
morning.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              90  64  89  63 /   0   0   0   0
Austin Bergstrom Intl Airport  90  63  90  62 /   0   0   0   0
New Braunfels Muni Airport     89  62  89  60 /   0   0   0   0
Burnet Muni Airport            87  62  88  60 /   0   0   0   0
Del Rio Intl Airport           92  65  92  64 /   0   0   0   0
Georgetown Muni Airport        88  63  89  62 /   0   0   0   0
Hondo Muni Airport             90  61  90  58 /   0   0   0   0
San Marcos Muni Airport        89  63  90  61 /   0   0   0   0
La Grange - Fayette Regional   88  63  87  63 /   0   0   0   0
San Antonio Intl Airport       89  64  90  63 /   0   0   0   0
Stinson Muni Airport           90  64  91  63 /   0   0   0   0

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$

SHORT TERM...Platt
LONG TERM....Platt
AVIATION...Platt