San Antonio, Texas Weather Conditions

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Current Conditions

  • 92°
  • Mostly Cloudy
  • Wind: SE 9 mph
  • Humidity: 45%
  • Visibility: 10.0 miles
  • Dew Point: 68°
  • Pressure: 29.80 in. +
  • Heat Index: 96

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Click a section below for more information.

Next 12 Hours

7  pm
10  pm
1  am
4  am
7  am
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
86°
79°
79°
77°
75°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Chance of a Thunderstorm
  • High: 93 °
  • Low: 75 °
  • Chance of T-Storms
  • Friday
  • Chance of a Thunderstorm
  • High: 90 °
  • Low: 75 °
  • Chance of T-Storms
  • Saturday
  • Chance of a Thunderstorm
  • High: 90 °
  • Low: 72 °
  • Chance of T-Storms
  • Sunday
  • Chance of a Thunderstorm
  • High: 91 °
  • Low: 72 °
  • Chance of T-Storms
  • Monday
  • Partly Cloudy
  • High: 86 °
  • Low: 72 °
  • Partly Cloudy

Forecast for San Antonio, Texas

Updated: 4:00 PM CDT on September 18, 2014

Flash Flood Watch in effect through Friday morning...
  • Thursday

    Overcast with a chance of a thunderstorm and a chance of rain. High of 91F. Winds from the SSE at 5 to 10 mph. Chance of rain 40% with rainfall amounts near 0.2 in. possible.

  • Thursday Night

    Overcast with a chance of a thunderstorm and a chance of rain. Low of 75F. Winds from the ESE at 5 to 15 mph. Chance of rain 40% with rainfall amounts near 0.3 in. possible.

  • Friday

    Overcast with a chance of a thunderstorm and a chance of rain. High of 90F. Winds from the ESE at 5 to 15 mph. Chance of rain 40% with rainfall amounts near 0.2 in. possible.

  • Friday Night

    Overcast with a chance of a thunderstorm and a chance of rain. Low of 75F. Winds from the ESE at 5 to 15 mph. Chance of rain 20%.

  • Saturday

    Overcast with a chance of a thunderstorm and a chance of rain. High of 90F. Winds from the ESE at 5 to 10 mph. Chance of rain 30%.

  • Saturday Night

    Overcast with a chance of a thunderstorm and a chance of rain, then a chance of a thunderstorm and rain after midnight. Fog overnight. Low of 72F. Winds from the East at 5 to 10 mph. Chance of rain 20%.

  • Sunday

    Overcast with a chance of a thunderstorm and rain in the afternoon. High of 91F. Winds from the ENE at 10 to 15 mph. Chance of rain 40%.

  • Sunday Night

    Overcast with a chance of a thunderstorm and rain in the evening, then partly cloudy. Low of 72F. Winds from the East at 5 to 10 mph.

  • Monday

    Overcast in the morning, then mostly cloudy. High of 86F. Winds from the ENE at 5 to 10 mph.

  • Monday Night

    Mostly cloudy. Low of 72F. Winds from the SSE at 5 to 10 mph.

  • Tuesday

    Mostly cloudy. High of 90F. Winds from the ENE at 5 to 10 mph.

  • Tuesday Night

    Mostly cloudy. Fog overnight. Low of 70F. Winds from the ESE at 5 to 10 mph.

  • Wednesday

    Mostly cloudy with a chance of a thunderstorm. High of 86F. Winds from the ENE at 5 to 15 mph. Chance of rain 40%.

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 66F. Winds from the East at 5 to 15 mph. Chance of rain 40%.

  • Thursday

    Partly cloudy with a chance of a thunderstorm. High of 86F. Winds from the ENE at 5 to 15 mph. Chance of rain 50%.

  • Thursday Night

    Mostly cloudy with a chance of a thunderstorm. Low of 70F. Winds from the East at 5 to 15 mph. Chance of rain 40%.

  • Friday

    Mostly cloudy with a chance of a thunderstorm. High of 84F. Winds less than 5 mph. Chance of rain 40%.

  • Friday Night

    Partly cloudy. Low of 66F. Winds less than 5 mph.

  • Saturday

    Partly cloudy. High of 88F. Winds less than 5 mph.

  • Saturday Night

    Partly cloudy. Low of 68F. Winds less than 5 mph.

  • Sunday

    Partly cloudy. High of 88F. Winds less than 5 mph.

  • Sunday Night

    Partly cloudy. Low of 68F. Winds less than 5 mph.

  • Monday

    Clear. High of 86F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 68F. Winds from the ENE at 5 to 10 mph.

Severe Weather Alert Descriptions

 Flash Flood Watch  Statement as of 3:35 PM CDT on September 18, 2014


... Flash Flood Watch in effect through Friday morning...

The National Weather Service in Austin/San Antonio has expanded
the

* Flash Flood Watch to include the following counties in south
central Texas... Bandera... Bexar... blanco... Caldwell... Comal...
Edwards... Gillespie... Gonzales... Guadalupe... Hays... Kendall...
Kerr... Lavaca... Medina... real and Uvalde.

* Through Friday morning

* average rainfall amounts of 1 to 3 inches... with isolated
amounts of 3 to 5 inches possible across the watch area.

* Flash flooding of low water crossings and other low lying and
normally flood prone areas is likely due to heavy rains.
Normally dry creeks and area streams may also see rapid rises.

Precautionary/preparedness actions...

A Flash Flood Watch means flash flooding is possible in or near
the watch area. If you are in the watch area... plan now for what
you will do if flash flooding develops. Stay informed and be
ready to act if you see flooding or if a Flash Flood Warning is
issued.






Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Castle Hills, San Antonio, TX

Updated: 6:33 PM CDT

Temperature: 91.8 °F Dew Point: 71 °F Humidity: 51% Wind: NNE at 2.7 mph Pressure: 29.74 in Hourly Precipitation: - Heat Index: 99 °F Graphs

Location: San Antonio Old Hwy90 C677, San Antonio, TX

Updated: 6:40 PM CDT

Temperature: 92.1 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: Summit, San Antonio, TX

Updated: 6:29 PM CDT

Temperature: 90.1 °F Dew Point: 71 °F Humidity: 53% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Alamo Heights, San Antonio, TX

Updated: 6:35 PM CDT

Temperature: 92.1 °F Dew Point: 69 °F Humidity: 47% Wind: ESE at 2.2 mph Pressure: 29.53 in Hourly Precipitation: - Heat Index: 97 °F Graphs

Location: Southwest Research Institute, San Antonio, TX

Updated: 6:40 PM CDT

Temperature: 90.3 °F Dew Point: 65 °F Humidity: 43% Wind: ESE at 5.0 mph Pressure: 29.72 in Hourly Precipitation: 0.00 in Heat Index: 92 °F Graphs

Location: Alamo Heights, San Antonio, TX

Updated: 6:39 PM CDT

Temperature: 90.3 °F Dew Point: 70 °F Humidity: 52% Wind: SSW at 3.0 mph Pressure: 29.75 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Wellesley Manor, San Antonio, TX

Updated: 6:40 PM CDT

Temperature: 91.0 °F Dew Point: 60 °F Humidity: 35% Wind: Calm Pressure: 29.66 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Former Lone Star Brewery, San Antonio, TX

Updated: 6:40 PM CDT

Temperature: 92.6 °F Dew Point: 71 °F Humidity: 49% Wind: ESE at 3.0 mph Pressure: 29.69 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: San Antonio Northwest C23, San Antonio, TX

Updated: 6:40 PM CDT

Temperature: 90.3 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: Marshall Meadows, San Antonio, TX

Updated: 6:43 PM CDT

Temperature: 90.5 °F Dew Point: 67 °F Humidity: 46% Wind: West at 2.2 mph Pressure: 29.75 in Hourly Precipitation: - Heat Index: 94 °F Graphs

Location: West Wood Village, San Antonio, TX

Updated: 6:44 PM CDT

Temperature: 93.3 °F Dew Point: 70 °F Humidity: 47% Wind: SE at 2.3 mph Pressure: 29.00 in Hourly Precipitation: 0.00 in Heat Index: 100 °F Graphs

Location: Alamo Farmsteads, San Antonio, TX

Updated: 6:44 PM CDT

Temperature: 90.1 °F Dew Point: 71 °F Humidity: 53% Wind: Calm Pressure: 29.01 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Tanglewood, San Antonio, TX

Updated: 6:43 PM CDT

Temperature: 92.7 °F Dew Point: 73 °F Humidity: 53% Wind: ENE at 5.8 mph Pressure: 29.49 in Hourly Precipitation: - Heat Index: 102 °F Graphs

Location: French Creek Village, San Antonio, TX

Updated: 6:44 PM CDT

Temperature: 90.0 °F Dew Point: 67 °F Humidity: 46% Wind: SE at 7.8 mph Pressure: 28.85 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: Shavano Park, Shavano Park, TX

Updated: 6:44 PM CDT

Temperature: 87.9 °F Dew Point: 72 °F Humidity: 60% Wind: Calm Pressure: 28.77 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: CPS Pecan Valley C678, San Antonio, TX

Updated: 6:40 PM CDT

Temperature: 91.9 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Braun Station, San Antonio, TX

Updated: 6:44 PM CDT

Temperature: 91.2 °F Dew Point: 83 °F Humidity: 77% Wind: East at 2.2 mph Pressure: 29.36 in Hourly Precipitation: 0.00 in Heat Index: 115 °F Graphs

Location: San Antonio Seale C140, San Antonio, TX

Updated: 6:40 PM CDT

Temperature: 92.1 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: Braun Station East, San Antonio, TX

Updated: 6:41 PM CDT

Temperature: 90.1 °F Dew Point: 66 °F Humidity: 47% Wind: Calm Pressure: 29.71 in Hourly Precipitation: 0.01 in Heat Index: 93 °F Graphs

Location: NW Crossing, San Antonio, TX

Updated: 6:41 PM CDT

Temperature: 90.5 °F Dew Point: 69 °F Humidity: 50% Wind: ESE at 3.8 mph Pressure: 29.75 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Nefarian's Lair, San Antonio, TX

Updated: 6:44 PM CDT

Temperature: 80.2 °F Dew Point: 44 °F Humidity: 28% Wind: NE at 3.1 mph Pressure: 29.79 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: New Territories, San Antonio, TX

Updated: 6:44 PM CDT

Temperature: 90.1 °F Dew Point: 67 °F Humidity: 47% Wind: Calm Pressure: 29.63 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: Oak Ridge Pointe, San Antonio, TX

Updated: 6:38 PM CDT

Temperature: 90.0 °F Dew Point: 70 °F Humidity: 53% Wind: Calm Pressure: 29.70 in Hourly Precipitation: - Heat Index: 96 °F Graphs

Location: kirby tx, Kirby, TX

Updated: 6:40 PM CDT

Temperature: 91.2 °F Dew Point: 73 °F Humidity: 55% Wind: SE at 1.0 mph Pressure: 29.66 in Hourly Precipitation: 0.00 in Heat Index: 100 °F Graphs

Location: College Park, San Antonio, TX

Updated: 6:41 PM CDT

Temperature: 89.2 °F Dew Point: 80 °F Humidity: 74% Wind: Calm Pressure: 29.73 in Hourly Precipitation: 0.00 in Heat Index: 106 °F Graphs

Location: Hollywood Park, Hollywood Park, TX

Updated: 6:44 PM CDT

Temperature: 85.6 °F Dew Point: 18 °F Humidity: 8% Wind: South at 3.6 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: San Antonio IH35 C1069, Windcrest, TX

Updated: 6:40 PM CDT

Temperature: 92.5 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: Renaissance in the Vineyards, San Antonio, TX

Updated: 6:44 PM CDT

Temperature: 89.7 °F Dew Point: 69 °F Humidity: 50% Wind: Calm Pressure: 29.76 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: Rogers Ranch, San Antonio, TX

Updated: 6:44 PM CDT

Temperature: 89.4 °F Dew Point: 71 °F Humidity: 55% Wind: East at 3.1 mph Pressure: 29.78 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: San Antonio Palo Alto C676, San Antonio, TX

Updated: 6:40 PM CDT

Temperature: 91.8 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: Sunrise, San Antonio, TX

Updated: 6:44 PM CDT

Temperature: 93.6 °F Dew Point: 77 °F Humidity: 58% Wind: Calm Pressure: 29.75 in Hourly Precipitation: 0.00 in Heat Index: 108 °F Graphs

Location: Wetmore, San Antonio, TX

Updated: 6:44 PM CDT

Temperature: 75.7 °F Dew Point: 71 °F Humidity: 85% Wind: NNE at 3.0 mph Pressure: 29.79 in Hourly Precipitation: 0.22 in Heat Index: 76 °F Graphs

Location: Cedar Springs 2, Helotes, TX

Updated: 6:43 PM CDT

Temperature: 91.0 °F Dew Point: 72 °F Humidity: 54% Wind: NE at 2.2 mph Pressure: 29.72 in Hourly Precipitation: - Heat Index: 99 °F Graphs

Location: North San Antonio, San Antonio, TX

Updated: 6:44 PM CDT

Temperature: 87.8 °F Dew Point: 71 °F Humidity: 58% Wind: NE at 1.0 mph Pressure: 29.69 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: Cedar Springs, Helotes, TX

Updated: 6:44 PM CDT

Temperature: 87.7 °F Dew Point: 73 °F Humidity: 61% Wind: East at 2.5 mph Pressure: 29.71 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: Braunridge, Helotes, TX

Updated: 6:44 PM CDT

Temperature: 91.4 °F Dew Point: 72 °F Humidity: 53% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion...updated 
National Weather Service Austin/San Antonio Texas 
627 PM CDT Thursday Sep 18 2014 


Aviation...the previous set of tafs has been adjusted to account 
for convection that is developing in the vicinity of aus...Sat... 
and ssf. Overall...expect showers and thunderstorms to affect 
these aerodromes through the next few hours until conditions 
become more quiet after midnight. The weather pattern looks a 
little drier for Friday...and that previous trend has been kept 
for these tafs. However...future shifts may need to include the 
mention of convection for this day. Overall...MVFR/VFR should 
dominate through the next 24 to 30 hours. Varying ceiling and 
convection trends will quite likely necessitate amendments for the 
next several hours and through tonight. 
&& 


Previous discussion... /issued 401 PM CDT Thursday Sep 18 2014/ 


Short term (tonight through Friday night)... 
the overnight rainfall event left some impressive precipitation 
totals across portions of south central Texas. Hardest hit were 
Williamson...Travis...northern Hays and northern blanco counties. 
The highest rainfall total so far has been 7.1 inches from a 
cocorahs observer in west central Travis County. There were fairly 
widespread reports of 2 to 4 inches across Travis and Williamson 
counties. 


Satellite trends from this morning show pronounced clearing across 
locations generally east of Highway 83. Daytime heating along with a 
continued very moist atmosphere (precipitable water values from near 
1.9" west to 2.25" east) have allowed another round of convection to 
develop this afternoon. Hi-res models suggest areas along and north 
of Highway 71 stand the best shot at additional precipitation this 
afternoon and into the evening hours. Based on the recent 
rainfall...expected additional rainfall and the day 1 excessive 
rainfall outlook of slight to moderate...we will continue a very 
good chance for precipitation for the rest of today into tonight. 
Elsewhere across the region...the latest hi-res models suggest a 
good chance for rain across most areas...especially along and east 
of a Rocksprings to Uvalde to Pleasanton line. The hi-res arw/nmm 
show a more organized area of convection dropping south out of west 
central Texas into the western Hill Country and southern Edwards 
Plateau overnight. Given good agreement among the models...we have 
opted to increase rain chances significantly across this region. The 
atmosphere remains very moist and can/T rule out additional heavy 
rainfall and flash flooding concerns overnight. With this in mind... 
we will extend the current Flash Flood Watch for the Highway 71 
corridor through 7 am Friday morning. We will also add counties 
along and north of a Rocksprings...Uvalde...San Antonio...Gonzales 
to Hallettsville line. Rainfall amounts will generally average 1-3" 
with higher amounts of 3 to 5". Moisture remains intact on Friday 
and with subtle shortwave troughs embedded in the northwest flow 
aloft... we will increase rain chances to 30% along the Rio Grande 
and up to 50% generally north of I-10. 


Long term (saturday through thursday)... 
on Saturday...the short range models suggest the middle-level remnants 
of Odile will gradually slide eastward into portions of west central 
and central Texas. Additional showers and thunderstorms remain 
possible given plenty of moisture and daytime heating. The 
remnants of Odile eventually move east through early next week. 
We/ll continue to mention a slight chance of showers and storms 
through Tuesday. The medium range models have trended with a cold 
front next week and generally show little change in air mass 
across the region. 
&& 


Preliminary point temps/pops... 
Austin Camp Mabry 73 90 72 89 73 / 70 50 30 30 20 
Austin Bergstrom international Airport 72 89 71 89 71 / 70 50 30 30 20 
New Braunfels Muni Airport 73 90 72 91 72 / 70 50 30 30 20 
Burnet Muni Airport 71 88 72 88 72 / 70 50 30 30 20 
del Rio International Airport 76 89 75 88 75 / 40 30 30 30 30 
Georgetown Muni Airport 72 88 72 89 73 / 70 50 30 30 20 
Hondo Muni Airport 73 91 72 91 73 / 60 40 30 30 30 
San Marcos Muni Airport 73 89 72 89 73 / 70 50 30 30 20 
La Grange - Fayette regional 73 90 72 89 74 / 70 50 30 30 20 
San Antonio International Airport 75 90 75 91 75 / 60 50 30 30 20 
Stinson Muni Airport 75 91 74 92 75 / 60 50 30 30 30 
&& 


Ewx watches/warnings/advisories... 
Flash Flood Watch through Friday morning for the following 
counties: Bandera...Bastrop...Bexar...blanco...Burnet...Caldwell... 
Comal...Edwards...Fayette...Gillespie...Gonzales...Guadalupe... 
Hays...Kendall...Kerr...Lavaca...Lee...Llano...Medina...real... 
Travis...Uvalde...Williamson. 
&& 


$$ 


Mesoscale/aviation...tomaselli 








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