San Antonio, Texas Weather Conditions

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Current Conditions

  • 75°
  • Mostly Cloudy
  • Wind: ESE 5 mph
  • Humidity: 94%
  • Visibility: 10.0 miles
  • Dew Point: 73°
  • Pressure: 29.91 in. +

Nowcast

  • Now as of 1:14 am CDT on September 20, 2014

    Through 3 am...isolated showers and thunderstorms will develop during the early morning hours and impact the area for the next several hours. Residents can expect rainfall rates from a few hundredths to one quarter of an inch with the lighter precipitation...but the heavy or slower moving thunderstorms will produce up to one inch of rainfall...along with lightning. Remember...turn around don't drown if you encounter a flooded roadway.

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Next 12 Hours

4  am
7  am
10  am
1  pm
4  pm
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
77°
73°
77°
86°
90°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Chance of a Thunderstorm
  • High: 90 °
  • Low: 73 °
  • Chance of T-Storms
  • Sunday
  • Chance of a Thunderstorm
  • High: 91 °
  • Low: 72 °
  • Chance of T-Storms
  • Monday
  • Chance of a Thunderstorm
  • High: 93 °
  • Low: 72 °
  • Chance of a Thunderstorm
  • Tuesday
  • Chance of a Thunderstorm
  • High: 90 °
  • Low: 70 °
  • Chance of a Thunderstorm
  • Wednesday
  • Chance of a Thunderstorm
  • High: 88 °
  • Low: 68 °
  • Chance of T-Storms

Forecast for San Antonio, Texas

Updated: 4:00 AM CDT on September 20, 2014

  • Saturday

    Overcast with a chance of a thunderstorm and a chance of rain. High of 90F with a heat index of 95F. Winds from the ENE at 5 to 10 mph. Chance of rain 40%.

  • Saturday Night

    Mostly cloudy with a chance of a thunderstorm and a chance of rain. Low of 73F. Winds from the SE at 5 to 10 mph. Chance of rain 20%.

  • Sunday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 91F. Winds from the ENE at 5 to 15 mph. Chance of rain 30%.

  • Sunday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 72F. Winds from the NNE at 5 to 10 mph. Chance of rain 20%.

  • Monday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 93F. Winds from the NNE at 5 to 10 mph shifting to the East in the afternoon. Chance of rain 20%.

  • Monday Night

    Clear in the evening, then overcast. Low of 72F. Winds from the South at 5 to 10 mph.

  • Tuesday

    Overcast in the morning, then partly cloudy with a chance of a thunderstorm and rain. High of 90F. Winds from the East at 5 to 10 mph. Chance of rain 20%.

  • Tuesday Night

    Overcast with a chance of a thunderstorm and rain. Low of 70F. Winds from the ESE at 5 to 10 mph. Chance of rain 20%.

  • Wednesday

    Mostly cloudy with a chance of a thunderstorm and rain in the afternoon. High of 88F. Winds from the East at 5 to 10 mph. Chance of rain 40%.

  • Wednesday Night

    Partly cloudy. Low of 68F. Winds from the East at 5 to 10 mph.

  • Thursday

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

  • Thursday Night

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

  • Friday

    Overcast with a chance of a thunderstorm. High of 86F. Winds from the ENE at 5 to 10 mph. Chance of rain 40%.

  • Friday Night

    Partly cloudy. Low of 70F. Winds from the East at 5 to 10 mph.

  • Saturday

    Overcast. High of 93F. Winds from the ENE at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Low of 70F. Winds from the ESE at 5 to 10 mph.

  • Sunday

    Mostly cloudy with a chance of a thunderstorm. High of 93F. Winds less than 5 mph. Chance of rain 40%.

  • Sunday Night

    Partly cloudy. Fog overnight. Low of 70F. Winds less than 5 mph.

  • Monday

    Partly cloudy with a chance of a thunderstorm. High of 93F. Winds less than 5 mph. Chance of rain 40%.

  • Monday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 72F. Winds less than 5 mph. Chance of rain 40%.

  • Tuesday

    Partly cloudy with a chance of a thunderstorm. High of 90F. Winds less than 5 mph. Chance of rain 50%.

  • Tuesday Night

    Clear. Fog overnight. Low of 72F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Heritage Middle School C622, San Antonio, TX

Updated: 2:50 AM CDT

Temperature: 75.9 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: CPS Pecan Valley C678, San Antonio, TX

Updated: 2:50 AM CDT

Temperature: 75.6 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Calaveras Lake C59, San Antonio, TX

Updated: 2:50 AM CDT

Temperature: 75.6 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: Former Lone Star Brewery, San Antonio, TX

Updated: 2:50 AM CDT

Temperature: 76.7 °F Dew Point: 74 °F Humidity: 91% Wind: SE at 2.0 mph Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: San Antonio Seale C140, San Antonio, TX

Updated: 2:50 AM CDT

Temperature: 75.7 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

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

Updated: 2:50 AM CDT

Temperature: 75.7 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: kirby tx, Kirby, TX

Updated: 2:55 AM CDT

Temperature: 75.9 °F Dew Point: 74 °F Humidity: 94% Wind: Calm Pressure: 29.81 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Sayers, Adkins, TX

Updated: 2:51 AM CDT

Temperature: 76.0 °F Dew Point: 73 °F Humidity: 89% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Sunrise, San Antonio, TX

Updated: 2:56 AM CDT

Temperature: 76.5 °F Dew Point: 76 °F Humidity: 99% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Country Place Subdivision, Adkins, TX

Updated: 2:46 AM CDT

Temperature: 75.8 °F Dew Point: 72 °F Humidity: 88% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

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

Updated: 2:50 AM CDT

Temperature: 76.5 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: Alamo Heights, San Antonio, TX

Updated: 2:53 AM CDT

Temperature: 75.6 °F Dew Point: 72 °F Humidity: 90% Wind: SW at 1.7 mph Pressure: 29.71 in Hourly Precipitation: - Heat Index: 75 °F Graphs

Location: Alamo Heights, San Antonio, TX

Updated: 2:42 AM CDT

Temperature: 75.5 °F Dew Point: 73 °F Humidity: 90% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Texas coastal Plain haypatch, Floresville, TX

Updated: 2:07 AM CDT

Temperature: 75.1 °F Dew Point: 74 °F Humidity: 96% Wind: Calm Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: San Antonio IH35 C1069, Windcrest, TX

Updated: 2:51 AM CDT

Temperature: 75.7 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: Southwest Research Institute, San Antonio, TX

Updated: 2:55 AM CDT

Temperature: 74.8 °F Dew Point: 70 °F Humidity: 86% Wind: SE at 2.8 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: West Wood Village, San Antonio, TX

Updated: 2:56 AM CDT

Temperature: 76.0 °F Dew Point: 73 °F Humidity: 90% Wind: Calm Pressure: 29.14 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Woodcrest, Live Oak, TX

Updated: 2:56 AM CDT

Temperature: 75.7 °F Dew Point: 74 °F Humidity: 95% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Castle Hills, San Antonio, TX

Updated: 2:51 AM CDT

Temperature: 74.7 °F Dew Point: 73 °F Humidity: 95% Wind: SSW at 3.1 mph Pressure: 29.87 in Hourly Precipitation: - Heat Index: 73 °F Graphs

Location: Poteet, TX

Updated: 2:49 AM CDT

Temperature: 74.8 °F Dew Point: 71 °F Humidity: 88% Wind: ENE at 1.0 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Nefarian's Lair, San Antonio, TX

Updated: 2:55 AM CDT

Temperature: 76.6 °F Dew Point: 56 °F Humidity: 48% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: MesoWest OGDEN TX US UPR, San Antonio, TX

Updated: 2:05 AM CDT

Temperature: 76 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Summit, San Antonio, TX

Updated: 2:47 AM CDT

Temperature: 74.6 °F Dew Point: 73 °F Humidity: 94% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: MesoWest MCDONA TX US UPR, Macdona, TX

Updated: 1:25 AM CDT

Temperature: 80 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Wellesley Manor, San Antonio, TX

Updated: 2:55 AM CDT

Temperature: 75.5 °F Dew Point: 69 °F Humidity: 80% Wind: Calm Pressure: 29.81 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: High Country, San Antonio, TX

Updated: 2:52 AM CDT

Temperature: 74.5 °F Dew Point: 72 °F Humidity: 91% Wind: South at 2.2 mph Pressure: 29.70 in Hourly Precipitation: - Heat Index: 73 °F Graphs

Location: San Antonio Northwest C23, San Antonio, TX

Updated: 2:50 AM CDT

Temperature: 74.5 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: Selma Park Estates, Selma, TX

Updated: 2:55 AM CDT

Temperature: 75.3 °F Dew Point: 73 °F Humidity: 92% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Marshall Meadows, San Antonio, TX

Updated: 12:07 AM CDT

Temperature: 75.9 °F Dew Point: 74 °F Humidity: 95% Wind: Calm Pressure: 29.92 in Hourly Precipitation: - Heat Index: 75 °F Graphs

Location: MesoWest BRCKN1 TX US UPR, San Antonio, TX

Updated: 1:50 AM CDT

Temperature: 75 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Longs Creek, San Antonio, TX

Updated: 2:56 AM CDT

Temperature: 74.7 °F Dew Point: 72 °F Humidity: 93% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 73 °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 
1122 PM CDT Friday Sep 19 2014 


Aviation...no changes were made to the previous set of tafs... 
except for the adjustment of initial conditions and the addition 
of a couple of periods on the end of the drt taf. 11 to 3.9 micron 
satellite imagery is showing both rapidly dissipating high cirrus 
and increasing coverage of low cloudiness. Surface observations 
indicate that these low clouds have bases between 1500 and 2000 
feet. Thus...appears that the previous indication of IFR for the 
overnight hours may be on track for 3 of 4 aerodromes. Although 
VFR will resume tomorrow after sunrise...a degradation into MVFR 
or possibly IFR again is expected for Saturday night. 
&& 


Previous discussion... /issued 623 PM CDT Friday Sep 19 2014/ 


Aviation...the previous set of tafs appeared sound in reasoning 
and therefore the only changes that were made were to initial 
conditions and the removal of the vcsh for the drt taf. Overall... 
VFR conditions right now will degrade to IFR for majority of the 
Aerodrome sites as low stratus and reduced visibilities develop. 
VFR will return on Saturday only to degrade to MVFR or possible 
IFR again Saturday night. 


Previous discussion... /issued 326 PM CDT Friday Sep 19 2014/ 


Short term (tonight through Saturday night)... 
rain continues to extend from Llano southeast towards San 
Marcos down through and Cuero. Parts of The Hill 
Country have already seen 3-5 inches of rainfall through the early 
afternoon hours. The remnants of Odile are currently near Midland 
while a middle to upper level convergence zone remains draped across 
south central Texas. 


The tropical moisture over our area...from what is left of Odile 
and some upper level moisture from Tropical Storm Polo...continues 
to produce precipitable water values of 2-2.5 inches. The morning 
sounding at del Rio had a precipitable water value of 1.98 inches. While models 
show the remnant circulation of Odile staying to our north the 
moisture and lift will combine with the convergence zone over the 
area and ample moisture to continue chances for showers and a few 
thunderstorms this afternoon into the evening hours. Coverage 
should be less than the last two days so the Flash Flood Watch 
will not be reissued. That said locally heavy rainfall is still 
possible...as we saw this morning...so some areas could get 1-2 
inches of rainfall with 3-4 inch totals possible. High resolution 
models suggest that overnight the upper level convergence will 
shift closer to the Rio Grande plains increasing their chance for 
precipitation. 


As the tropical airmass remains over Texas and the remnants of 
Odile are slow to push out of West Texas rain chances continue 
into Saturday. Models suggest that the best chance of rain 
Saturday will be along and west of Highway 281...although the 
eastern half of central Texas could still see some scattered 
activity. 


Long term (sunday through friday)... 
the drying trend begins on Sunday as high pressure develops over 
southern New Mexico and West Texas. Drier low level air will 
result in only isolated showers and thunderstorms on Sunday and 
Monday. Models still show the front that was expected early next 
week will remain to our north and only produce a wind shift on 
Monday and aid in drier air move in across south central Texas for 
the middle of the week. Behind the front the upper level ridge 
continues to build across much of Texas. Both long range 
models...the GFS and European model (ecmwf)...show a trough across the Central 
Plains by Thursday of next week. This could weaken the ridge 
enough to promote some sea breeze activity but with the main 
forcing to the north no significant precipitation is expected. 
Highs will remain at or just above seasonal normals while low 
temperatures will cool slightly into next week due to the dry air 
and lower dewpoints. 


Treadway 
&& 


Preliminary point temps/pops... 
Austin Camp Mabry 74 90 73 92 73 / 30 30 20 20 20 
Austin Bergstrom international Airport 72 90 71 92 71 / 30 30 20 20 20 
New Braunfels Muni Airport 73 90 73 94 72 / 30 30 20 30 20 
Burnet Muni Airport 73 86 72 92 71 / 30 30 20 30 20 
del Rio International Airport 76 89 74 88 74 / 40 40 30 40 30 
Georgetown Muni Airport 74 89 73 92 72 / 30 30 20 20 20 
Hondo Muni Airport 74 89 74 93 73 / 40 40 30 30 20 
San Marcos Muni Airport 73 90 73 92 71 / 30 30 20 20 20 
La Grange - Fayette regional 74 89 74 93 72 / 30 30 20 20 20 
San Antonio International Airport 75 89 75 93 74 / 30 30 20 30 20 
Stinson Muni Airport 75 90 74 93 74 / 30 40 20 30 20 
&& 


Ewx watches/warnings/advisories...none. 
&& 


$$ 


Mesoscale/aviation...tomaselli 



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