San Antonio, Texas Weather Conditions

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Current Conditions

  • 77°
  • Mostly Cloudy
  • Wind: East 6 mph
  • Humidity: 89%
  • Visibility: 10.0 miles
  • Dew Point: 73°
  • Pressure: 29.90 in. -

Nowcast

  • Now as of 4:50 am CDT on September 20, 2014

    Through 7 am...isolated showers will continue to develop and impact portions of the region early this morning. Residents can expect rainfall rates from a few hundredths to one quarter of an inch with the lighter precipitation...but the stronger and slower moving showers will produce up to one half inch of rainfall. Patchy fog is possible...especially in areas that have seen rainfall recently. Visibilities will be 3 to 5 miles. Remember to use the low beam headlights and reduce your speed in areas of fog.

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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°
79°
86°
91°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Chance of a Thunderstorm
  • High: 91 °
  • Low: 72 °
  • Chance of T-Storms
  • Sunday
  • Chance of a Thunderstorm
  • High: 90 °
  • Low: 72 °
  • Chance of T-Storms
  • Monday
  • Chance of a Thunderstorm
  • High: 91 °
  • Low: 70 °
  • Chance of a Thunderstorm
  • Tuesday
  • Chance of a Thunderstorm
  • High: 90 °
  • Low: 70 °
  • Chance of a Thunderstorm
  • Wednesday
  • Chance of a Thunderstorm
  • High: 90 °
  • 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 91F with a heat index of 97F. Winds from the East at 5 to 10 mph shifting to the North in the afternoon. Chance of rain 40%.

  • Saturday Night

    Mostly cloudy with a chance of a thunderstorm and a chance of rain. Low of 72F. Winds from the West at 5 to 10 mph shifting to the East after midnight. Chance of rain 20%.

  • Sunday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 90F. 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 North at 5 to 10 mph shifting to the ENE after midnight. Chance of rain 20%.

  • Monday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 91F. 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 mostly cloudy. Low of 70F. 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

    Mostly cloudy in the evening, then 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

    Partly cloudy with a chance of a thunderstorm and rain in the afternoon. High of 90F. Winds from the East at 5 to 10 mph. Chance of rain 40%.

  • Wednesday Night

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

  • Thursday

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

  • Thursday Night

    Mostly cloudy. Low of 68F. Winds from the ESE at 5 to 10 mph.

  • Friday

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

  • Friday Night

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

  • Saturday

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

  • Saturday Night

    Partly cloudy. Low of 72F. Winds from the ESE at 5 to 10 mph.

  • Sunday

    Partly cloudy with a chance of a thunderstorm. High of 95F. 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 95F. 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 91F. 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: San Antonio Northwest C23, San Antonio, TX

Updated: 4:50 AM CDT

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

Location: Southwest Research Institute, San Antonio, TX

Updated: 4:55 AM CDT

Temperature: 75.3 °F Dew Point: 71 °F Humidity: 86% Wind: East at 3.2 mph Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Marshall Meadows, San Antonio, TX

Updated: 3:54 AM CDT

Temperature: 73.4 °F Dew Point: 73 °F Humidity: 99% Wind: Calm Pressure: 29.92 in Hourly Precipitation: - Heat Index: - Graphs

Location: Wellesley Manor, San Antonio, TX

Updated: 4:55 AM CDT

Temperature: 75.7 °F Dew Point: 69 °F Humidity: 81% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: French Creek Village, San Antonio, TX

Updated: 4:56 AM CDT

Temperature: 75.6 °F Dew Point: 75 °F Humidity: 98% Wind: Calm Pressure: 28.97 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Alamo Farmsteads, San Antonio, TX

Updated: 4:56 AM CDT

Temperature: 73.4 °F Dew Point: 69 °F Humidity: 85% Wind: Calm Pressure: 29.13 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: West Wood Village, San Antonio, TX

Updated: 4:56 AM CDT

Temperature: 76.6 °F Dew Point: 73 °F Humidity: 90% Wind: Calm Pressure: 29.12 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Braun Station, San Antonio, TX

Updated: 4:56 AM CDT

Temperature: 75.7 °F Dew Point: 76 °F Humidity: 99% Wind: Calm Pressure: 29.49 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

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

Updated: 4:50 AM CDT

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

Location: New Territories, San Antonio, TX

Updated: 4:56 AM CDT

Temperature: 74.8 °F Dew Point: 73 °F Humidity: 94% Wind: Calm Pressure: 29.75 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Summit, San Antonio, TX

Updated: 4:47 AM CDT

Temperature: 74.5 °F Dew Point: 73 °F Humidity: 95% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Tanglewood, San Antonio, TX

Updated: 4:46 AM CDT

Temperature: 74.7 °F Dew Point: 72 °F Humidity: 93% Wind: East at 1.1 mph Pressure: 29.64 in Hourly Precipitation: - Heat Index: 73 °F Graphs

Location: Oak Ridge Pointe, San Antonio, TX

Updated: 4:45 AM CDT

Temperature: 73.6 °F Dew Point: 73 °F Humidity: 99% Wind: Calm Pressure: 29.84 in Hourly Precipitation: - Heat Index: - Graphs

Location: Braunridge, Helotes, TX

Updated: 4:56 AM CDT

Temperature: 73.9 °F Dew Point: 73 °F Humidity: 98% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: North San Antonio Hills, San Antonio, TX

Updated: 4:51 AM CDT

Temperature: 75.2 °F Dew Point: 72 °F Humidity: 90% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Castle Hills, San Antonio, TX

Updated: 4:52 AM CDT

Temperature: 74.7 °F Dew Point: 73 °F Humidity: 95% Wind: Calm Pressure: 29.86 in Hourly Precipitation: - Heat Index: 73 °F Graphs

Location: College Park, San Antonio, TX

Updated: 4:55 AM CDT

Temperature: 75.4 °F Dew Point: 73 °F Humidity: 92% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Cedar Springs 2, Helotes, TX

Updated: 4:46 AM CDT

Temperature: 73.6 °F Dew Point: 73 °F Humidity: 99% Wind: Calm Pressure: 29.84 in Hourly Precipitation: - Heat Index: - Graphs

Location: Cedar Springs, Helotes, TX

Updated: 4:56 AM CDT

Temperature: 75.8 °F Dew Point: 71 °F Humidity: 86% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Helotes Park Terrace, Helotes, TX

Updated: 4:56 AM CDT

Temperature: 73.4 °F Dew Point: 71 °F Humidity: 93% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: Helotes Park Terrace-2, Helotes, TX

Updated: 4:56 AM CDT

Temperature: 74.7 °F Dew Point: 74 °F Humidity: 99% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Shavano Park, Shavano Park, TX

Updated: 4:56 AM CDT

Temperature: 75.0 °F Dew Point: 73 °F Humidity: 93% Wind: Calm Pressure: 28.88 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Stillwater Ranch, San Antonio, TX

Updated: 4:50 AM CDT

Temperature: 74.7 °F Dew Point: 73 °F Humidity: 95% Wind: Calm Pressure: 29.83 in Hourly Precipitation: - Heat Index: 73 °F Graphs

Location: Tower View Road, Helotes, TX

Updated: 4:56 AM CDT

Temperature: 74.8 °F Dew Point: 74 °F Humidity: 96% Wind: Calm Pressure: 29.64 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Former Lone Star Brewery, San Antonio, TX

Updated: 4:50 AM CDT

Temperature: 76.3 °F Dew Point: 74 °F Humidity: 93% Wind: East at 1.0 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Alamo Heights, San Antonio, TX

Updated: 4:55 AM CDT

Temperature: 75.6 °F Dew Point: 72 °F Humidity: 90% Wind: Calm Pressure: 29.68 in Hourly Precipitation: - Heat Index: 75 °F Graphs

Location: Alamo Heights, San Antonio, TX

Updated: 4:42 AM CDT

Temperature: 75.5 °F Dew Point: 73 °F Humidity: 90% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Rogers Ranch, San Antonio, TX

Updated: 4:56 AM CDT

Temperature: 76.3 °F Dew Point: 74 °F Humidity: 94% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: N5SDF Louis Agusta Dr, San Antonio, TX

Updated: 4:56 AM CDT

Temperature: 74.4 °F Dew Point: 69 °F Humidity: 84% Wind: Calm Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Triana, Helotes, TX

Updated: 4:56 AM CDT

Temperature: 74.3 °F Dew Point: 74 °F Humidity: 99% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: North San Antonio, San Antonio, TX

Updated: 4:56 AM CDT

Temperature: 75.3 °F Dew Point: 72 °F Humidity: 90% Wind: Calm Pressure: 29.81 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Renaissance in the Vineyards, San Antonio, TX

Updated: 4:56 AM CDT

Temperature: 75.6 °F Dew Point: 71 °F Humidity: 86% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

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

Updated: 4:50 AM CDT

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

Location: Camp Bullis C58, San Antonio, TX

Updated: 4:50 AM CDT

Temperature: 74.1 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Austin/San Antonio Texas 
322 am CDT Sat Sep 20 2014 


Short term (today through sunday)... 
plenty of moist air still in place to produce isolated light showers 
across the area early this morning. While the remnants of Pacific 
storm Odile and moist air from the Gulf and Pacific storm Polo 
are still in the vicinity...precipitable water has decreased significantly across 
our area... especially over the western 1/3. This doesn/T mean an 
end to the rain...but another step down in coverage and intensity 
from Friday. Many more locations should remain dry today or 
receive 1/10 inch or less of rain. However...isolated downpours of 
1 to 2 inches are still possible...especially in The Hill 
Country...where convection allowing mesoscale models point toward 
a peak in thunderstorm coverage and intensity by early afternoon. 
Look for another step down in convection tomorrow as drier air 
continues to filter in from the northeast. Probability of precipitation on Sunday should 
mostly be focused on the Rio Grande plains. 


&& 


Long term (sunday night through friday)... 
a weak cold front washes out just north of our area on Monday... 
but drier and slightly cooler air should continue to filter into 
south central Texas. We decided to place small probability of precipitation for Monday 
and Tuesday afternoons in the northeast and east coastal plains as 
the GFS/European model (ecmwf) indicate enough lift along the remnant of the front 
Monday...and a weak shortwave trough moving through North Texas 
on Tuesday...to produce isolated storms. Look for dry conditions 
Wednesday and Thursday as ridging builds over the southwestern 
states...then isolated storms for mainly the Rio Grande and 
coastal plains Friday into the weekend as moist Gulf flow returns 
and the ridge is broken down by a deep longwave trough over the 
inter-mountain west. 


&& 


Preliminary point temps/pops... 
Austin Camp Mabry 89 71 91 69 91 / 40 20 - - 20 
Austin Bergstrom international Airport 89 69 92 68 91 / 40 20 - - 20 
New Braunfels Muni Airport 91 71 92 69 93 / 40 30 10 - 10 
Burnet Muni Airport 89 70 90 69 90 / 40 20 10 - 20 
del Rio International Airport 90 74 88 71 88 / 30 30 20 20 - 
Georgetown Muni Airport 89 70 91 69 91 / 40 20 - - 20 
Hondo Muni Airport 92 72 92 68 93 / 30 30 20 10 - 
San Marcos Muni Airport 89 70 91 68 91 / 40 20 10 - 20 
La Grange - Fayette regional 91 71 92 70 92 / 40 20 - - 20 
San Antonio International Airport 91 73 92 71 92 / 40 30 10 - 10 
Stinson Muni Airport 92 73 92 70 93 / 30 30 10 - - 


&& 


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


$$ 


Mesoscale/aviation...10 
synoptic/grids...26 










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