San Antonio, Texas Weather Conditions

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Current Conditions

  • 89°
  • Scattered Clouds
  • Wind: East 6 mph
  • Humidity: 46%
  • Visibility: 10.0 miles
  • Dew Point: 66°
  • Pressure: 29.80 in. -
  • Heat Index: 91

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Next 12 Hours

4  pm
7  pm
10  pm
1  am
4  am
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Fog
Fog
93°
86°
79°
77°
73°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Partly Cloudy
  • High: 93 °
  • Low: 73 °
  • Partly Cloudy
  • Wednesday
  • Partly Cloudy
  • High: 93 °
  • Low: 75 °
  • Partly Cloudy
  • Thursday
  • Chance of a Thunderstorm
  • High: 95 °
  • Low: 66 °
  • Chance of a Thunderstorm
  • Friday
  • Partly Cloudy
  • High: 88 °
  • Low: 57 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 81 °
  • Low: 61 °
  • Partly Cloudy

Forecast for San Antonio, Texas

Updated: 4:00 PM CDT on September 30, 2014

  • Tuesday

    Partly cloudy. High of 93F. Winds less than 5 mph.

  • Tuesday Night

    Partly cloudy. Fog overnight. Low of 73F. Winds from the SSE at 5 to 10 mph.

  • Wednesday

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

  • Wednesday Night

    Clear in the evening, then partly cloudy. Low of 75F. Winds from the SSE at 5 to 15 mph.

  • Thursday

    Mostly cloudy. High of 95F with a heat index of 100F. Winds from the South at 10 to 15 mph. Chance of rain 20%.

  • Thursday Night

    Partly cloudy with a chance of a thunderstorm and rain in the evening, then clear with a chance of a thunderstorm and rain. Low of 66F. Winds from the SE at 5 to 15 mph shifting to the North after midnight. Chance of rain 60% with rainfall amounts near 0.2 in. possible.

  • Friday

    Clear in the morning, then partly cloudy. High of 88F. Breezy. Winds from the NNE at 10 to 20 mph.

  • Friday Night

    Partly cloudy in the evening, then clear. Low of 57F. Winds from the NE at 5 to 10 mph.

  • Saturday

    Clear in the morning, then partly cloudy. High of 81F. Winds from the East at 5 to 10 mph shifting to the SSE in the afternoon.

  • Saturday Night

    Clear. Fog overnight. Low of 61F. Winds from the SSE at 5 to 10 mph.

  • Sunday

    Partly cloudy. High of 88F. Winds from the South at 5 to 10 mph.

  • Sunday Night

    Partly cloudy. Fog overnight. Low of 66F. Winds from the ESE at 5 to 10 mph.

  • Monday

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

  • Monday Night

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

  • Tuesday

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

  • Tuesday Night

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

  • Wednesday

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

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm. Low of 70F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.

  • Thursday

    Clear with a chance of a thunderstorm. High of 88F. Winds less than 5 mph. Chance of rain 40%.

  • Thursday Night

    Clear. Low of 70F. Winds from the SE at 5 to 10 mph.

  • Friday

    Partly cloudy with a chance of a thunderstorm. High of 86F. Winds less than 5 mph. Chance of rain 40%.

  • Friday Night

    Partly cloudy with a chance of a thunderstorm. Low of 68F. Winds less than 5 mph. Chance of rain 40%.

  • Saturday

    Clear with a chance of a thunderstorm. High of 81F. Winds less than 5 mph. Chance of rain 20%.

  • Saturday Night

    Clear. Low of 68F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

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

Updated: 2:50 PM CDT

Temperature: 86.4 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: Former Lone Star Brewery, San Antonio, TX

Updated: 2:50 PM CDT

Temperature: 90.5 °F Dew Point: 67 °F Humidity: 46% Wind: SE at 2.0 mph Pressure: 29.72 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: CPS Pecan Valley C678, San Antonio, TX

Updated: 2:50 PM CDT

Temperature: 86.2 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 2:50 PM CDT

Temperature: 86.9 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: Heritage Middle School C622, San Antonio, TX

Updated: 2:50 PM CDT

Temperature: 85.1 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: San Antonio Seale C140, San Antonio, TX

Updated: 2:50 PM CDT

Temperature: 86.4 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: West Wood Village, San Antonio, TX

Updated: 2:52 PM CDT

Temperature: 92.4 °F Dew Point: 67 °F Humidity: 43% Wind: South at 4.6 mph Pressure: 29.02 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Southwest Research Institute, San Antonio, TX

Updated: 2:50 PM CDT

Temperature: 88.8 °F Dew Point: 60 °F Humidity: 38% Wind: South at 5.3 mph Pressure: 29.73 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: kirby tx, Kirby, TX

Updated: 2:50 PM CDT

Temperature: 90.0 °F Dew Point: 73 °F Humidity: 58% Wind: ESE at 1.0 mph Pressure: 29.69 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: Calaveras Lake C59, San Antonio, TX

Updated: 2:50 PM CDT

Temperature: 86.0 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: Thunderbird Hills, San Antonio, TX

Updated: 2:52 PM CDT

Temperature: 90.0 °F Dew Point: 52 °F Humidity: 28% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Alamo Heights, San Antonio, TX

Updated: 2:44 PM CDT

Temperature: 96.6 °F Dew Point: 67 °F Humidity: 38% Wind: WNW at 3.2 mph Pressure: 29.57 in Hourly Precipitation: - Heat Index: 101 °F Graphs

Location: Sunrise, San Antonio, TX

Updated: 2:52 PM CDT

Temperature: 92.3 °F Dew Point: 74 °F Humidity: 56% Wind: Calm Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 103 °F Graphs

Location: Poteet, TX

Updated: 2:41 PM CDT

Temperature: 87.9 °F Dew Point: 70 °F Humidity: 55% Wind: Calm Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: Sayers, Adkins, TX

Updated: 2:51 PM CDT

Temperature: 87.1 °F Dew Point: 66 °F Humidity: 50% Wind: Calm Pressure: 29.75 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Elm Creek Elementary C501, Atascosa, TX

Updated: 2:50 PM CDT

Temperature: 85.6 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Castle Hills, San Antonio, TX

Updated: 2:47 PM CDT

Temperature: 95.2 °F Dew Point: 67 °F Humidity: 40% Wind: SSW at 4.3 mph Pressure: 29.76 in Hourly Precipitation: - Heat Index: 99 °F Graphs

Location: MesoWest LEMING TX US UPR, Leming, TX

Updated: 12:15 PM CDT

Temperature: 83 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: San Antonio Northwest C23, San Antonio, TX

Updated: 2:50 PM CDT

Temperature: 84.7 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: Marshall Meadows, San Antonio, TX

Updated: 1:25 PM CDT

Temperature: 87.3 °F Dew Point: 65 °F Humidity: 48% Wind: Calm Pressure: 29.85 in Hourly Precipitation: - Heat Index: 89 °F Graphs

Location: Wellesley Manor, San Antonio, TX

Updated: 2:50 PM CDT

Temperature: 91.7 °F Dew Point: 56 °F Humidity: 30% Wind: Calm Pressure: 29.67 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Summit, San Antonio, TX

Updated: 2:41 PM CDT

Temperature: 89.6 °F Dew Point: 67 °F Humidity: 47% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: Country Place Subdivision, Adkins, TX

Updated: 2:40 PM CDT

Temperature: 89.7 °F Dew Point: 69 °F Humidity: 50% Wind: SSW at 2.0 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: French Creek Village, San Antonio, TX

Updated: 2:52 PM CDT

Temperature: 87.6 °F Dew Point: 64 °F Humidity: 45% Wind: SSW at 7.3 mph Pressure: 28.85 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: NW Crossing, San Antonio, TX

Updated: 2:50 PM CDT

Temperature: 92.3 °F Dew Point: 68 °F Humidity: 45% Wind: SE at 3.8 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 97 °F Graphs

Location: Alamo Farmsteads, San Antonio, TX

Updated: 2:52 PM CDT

Temperature: 92.8 °F Dew Point: 69 °F Humidity: 47% Wind: Calm Pressure: 29.03 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: Braun Station, San Antonio, TX

Updated: 2:52 PM CDT

Temperature: 90.9 °F Dew Point: 80 °F Humidity: 71% Wind: ESE at 1.6 mph Pressure: 29.38 in Hourly Precipitation: 0.00 in Heat Index: 109 °F Graphs

Location: Lytle, Atascosa County, Lytle, TX

Updated: 2:49 PM CDT

Temperature: 86.1 °F Dew Point: 67 °F Humidity: 53% Wind: NE at 3.0 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: North San Antonio Hills, San Antonio, TX

Updated: 2:51 PM CDT

Temperature: 91.2 °F Dew Point: 68 °F Humidity: 47% Wind: South at 4.5 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: New Territories, San Antonio, TX

Updated: 2:52 PM CDT

Temperature: 90.7 °F Dew Point: 68 °F Humidity: 48% Wind: Calm Pressure: 29.66 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: Braun Station East, San Antonio, TX

Updated: 2:47 PM CDT

Temperature: 97.5 °F Dew Point: 64 °F Humidity: 36% Wind: NW at 3.1 mph Pressure: 29.73 in Hourly Precipitation: 0.00 in Heat Index: 101 °F Graphs

Location: Tanglewood, San Antonio, TX

Updated: 2:40 PM CDT

Temperature: 91.2 °F Dew Point: 69 °F Humidity: 48% Wind: ESE at 3.2 mph Pressure: 29.52 in Hourly Precipitation: - Heat Index: 96 °F Graphs

Location: Texas coastal Plain haypatch, Floresville, TX

Updated: 2:38 PM CDT

Temperature: 89.9 °F Dew Point: 70 °F Humidity: 52% Wind: Calm Pressure: 29.67 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: Woodcrest, Live Oak, TX

Updated: 2:52 PM CDT

Temperature: 94.6 °F Dew Point: 64 °F Humidity: 37% Wind: Calm Pressure: 29.71 in Hourly Precipitation: 0.00 in Heat Index: 97 °F 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 
1239 PM CDT Tuesday Sep 30 2014 


Aviation... 
VFR through the afternoon and evening hours. Some cumulus will remain 
just past Sundown before skies mainly go clear for the late 
evening. Southerly low level flow will increase later tonight with 
simulated WRF showing ceilings forming as early as 8-9z tonight. 
GFS/NAM MOS are both giving low ceilings with NAM into the IFR 
range. Will keep at MVFR for now across aus/Sat/ssf. Looks like 
drt will be on the edge of getting some ceilings so will bring in 
at least some scattered low clouds for predawn. Forecast cross sections 
show that moisture is not substantially deep so we should break to 
partly cloudy by late morning with some mixing. Southerly winds 
will prevail with speeds not overly strong. But in a mention of 
lower visbys with the expected low stratus. 


&& 


Previous discussion... /issued 935 am CDT Tuesday Sep 30 2014/ 


Update... 
this is a quick update to remove the mentioning of patchy fog 
across our southeast counties. Expect mostly sunny skies across 
most areas with scattered clouds lingering across the southeast. 
There is a slight chance of showers/storms across the southeast 
mainly east of a Giddings to Gonzales to Kenedy line this afternoon. 
Some upper sheared moisture from Tropical Storm Rachel over the 
eastern Pacific will move across the Rio Grande/Edwards Plateau 
from time to time. Updated zones out shortly. 


Previous discussion... /issued 715 am CDT Tuesday Sep 30 2014/ 


Update... 
please see the 12z aviation discussion below. 


Aviation... 
patchy low clouds are developing along the I-35 corridor according 
to the latest 11-3.9 satellite loop and surface observations. 
Stratus clouds will not be widespread...but based on current 
trends will include a mention of tempo MVFR ceilings at ksat through 
14z. Otherwise...VFR conditions are expected today as winds become 
southeasterly. An increase in moisture will lead to patchy fog and 
widespread stratus development early Wednesday morning. We/ll 
continue to mention MVFR conditions and based on the latest NAM 
soundings... we could even see some IFR ceilings. For now...we/ll keep 
MVFR in the forecast and await later model data before dropping 
ceilings into IFR. 


Previous discussion... /issued 352 am CDT Tuesday Sep 30 2014/ 


Short term (today through wednesday)... 
mostly stable zonal flow aloft pattern will continue the slight 
warming trend for today. Over eastern counties...a weak middle-level 
trough will allow for slightly deeper moisture depth and a chance 
for isolated air mass type convection over the coastal prairies. 
Min temperatures for tonight will continue warming as well...as an upstream 
troughing over The Rockies will increase low level southerlies and 
moisture. Some morning clouds should give way to partly to mostly 
sunny afternoon with highs similar to those of today. 


Long term (wednesday night through monday)... 
the trough digging to the west will further deepen moisture over 
south central Texas early Thursday with a humid and warm day 
expected. Models continue to show the base of the trough tracking 
north of south central Texas late Thursday...leaving most of the 
dynamic lift to the north. Some light directional shear and 
moisture pooling from an approaching front should allow for an 
isolated thunderstorm chance over mainly northern counties 
Thursday afternoon and evening. The front is expected to increase 
rain chances as it moves southward into deeper moisture overnight 
into Friday morning. Most of the synoptic scale models show modest 
amounts of quantitative precipitation forecast...and the wetter Canadian model is also trending 
drier than earlier runs. The NAM looks to be an outlier with a 
slower front and higher amounts of convective potential. 


Post frontal conditions are expected to come with significant 
drying to allow for much cooler min temperatures for the weekend and 
even some below normal highs in the daytime. The western US ridging 
pattern aloft that allows for the dry northwest flow aloft pattern over Texas 
this weekend begins to flatten early next week. Southerly wind 
return in this model cycle is more aggressive for early next 
week...so a return to warm humid conditions is expected by the 
middle of next week. 


&& 


Preliminary point temps/pops... 
Austin Camp Mabry 92 72 91 75 91 / - - - - 20 
Austin Bergstrom international Airport 91 69 92 72 92 / - - - - 20 
New Braunfels Muni Airport 93 70 93 73 93 / - - - - 20 
Burnet Muni Airport 90 69 90 73 91 / - - - - 20 
del Rio International Airport 89 70 91 74 91 / - 0 - - 20 
Georgetown Muni Airport 91 71 91 74 91 / - - - - 20 
Hondo Muni Airport 93 70 93 73 94 / - 0 - - 10 
San Marcos Muni Airport 91 70 91 73 92 / - - - - 20 
La Grange - Fayette regional 91 72 91 75 92 / 20 10 10 10 20 
San Antonio International Airport 92 72 92 76 93 / - - - - 10 
Stinson Muni Airport 93 72 93 75 94 / - - - - 10 


&& 


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


$$ 


Mesoscale/aviation...09 
synoptic/grids...17 
public service/data collection...33 



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