San Antonio, Texas Weather Conditions

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Current Conditions

  • 73°
  • Overcast
  • Wind: SE 16 mph
  • Humidity: 88%
  • Visibility: 10.0 miles
  • Dew Point: 70°
  • Pressure: 29.92 in. 0

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Next 12 Hours

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Thunderstorm
T-storms
Overcast
Overcast
Chance of a Thunderstorm
Chance of T-storms
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Chance of T-storms
Chance of a Thunderstorm
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73°
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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of a Thunderstorm
  • High: 83 °
  • Low: 70 °
  • Chance of T-Storms
  • Thursday
  • Chance of a Thunderstorm
  • High: 81 °
  • Low: 71 °
  • Chance of T-Storms
  • Friday
  • Chance of a Thunderstorm
  • High: 83 °
  • Low: 71 °
  • Chance of T-Storms
  • Saturday
  • Chance of a Thunderstorm
  • High: 84 °
  • Low: 72 °
  • Chance of T-Storms
  • Sunday
  • Thunderstorm
  • High: 81 °
  • Low: 69 °
  • T-Storms

Forecast for San Antonio, Texas

Updated: 10:18 PM CDT on January 05, 2015

  • Tuesday

    Thunderstorms. Lows overnight in the upper 60s.

  • Tuesday Night

    Thunderstorms likely. Low 68F. Winds SE at 10 to 15 mph. Chance of rain 100%.

  • Wednesday

    Variable clouds with scattered thunderstorms. High 83F. Winds SE at 10 to 20 mph. Chance of rain 60%.

  • Wednesday Night

    Scattered thunderstorms developing overnight. Low near 70F. Winds SE at 10 to 20 mph. Chance of rain 60%.

  • Thursday

    Variable clouds with scattered thunderstorms. High 81F. Winds SE at 10 to 20 mph. Chance of rain 50%.

  • Thursday Night

    Partly to mostly cloudy with a chance of thunderstorms. Low 71F. Winds SE at 10 to 15 mph. Chance of rain 40%.

  • Friday

    Scattered showers and thunderstorms. High 83F. Winds SE at 10 to 20 mph. Chance of rain 60%.

  • Friday Night

    Scattered showers and thunderstorms, especially before midnight. Low 71F. Winds SE at 10 to 20 mph. Chance of rain 50%.

  • Saturday

    Mostly cloudy skies during the morning hours followed by thunderstorms in the afternoon. High 84F. Winds SSE at 15 to 25 mph. Chance of rain 80%.

  • Saturday Night

    Thunderstorms likely in the evening. Then the chance of scattered thunderstorms later on. Low 72F. Winds SE at 10 to 20 mph. Chance of rain 90%.

  • Sunday

    Thunderstorms. Potential for severe thunderstorms. High 81F. Winds SSE at 10 to 20 mph. Chance of rain 80%.

  • Sunday Night

    Scattered thunderstorms in the evening, then mainly cloudy overnight with thunderstorms likely. Low 69F. Winds ESE at 10 to 15 mph. Chance of rain 80%.

  • Monday

    Scattered thunderstorms, especially in the morning. High 81F. Winds ENE at 5 to 10 mph. Chance of rain 50%.

  • Monday Night

    Isolated thunderstorms during the evening becoming more widespread overnight. Low 68F. Winds ENE at 10 to 15 mph. Chance of rain 80%.

  • Tuesday

    Thunderstorms. High 79F. Winds ENE at 10 to 15 mph. Chance of rain 80%.

  • Tuesday Night

    Thunderstorms likely. Low 68F. Winds E at 10 to 15 mph. Chance of rain 80%.

  • Wednesday

    Thunderstorms likely. High 78F. Winds E at 10 to 15 mph. Chance of rain 80%.

  • Wednesday Night

    Thunderstorms likely in the evening. Then the chance of scattered thunderstorms later on. Low 67F. Winds E at 10 to 15 mph. Chance of rain 80%.

  • Thursday

    Thunderstorms likely. High 79F. Winds E at 10 to 15 mph. Chance of rain 80%.

  • Thursday Night

    Thunderstorms likely, especially in the evening. Low 66F. Winds E at 10 to 15 mph. Chance of rain 80%.

  • Friday

    Mixed clouds and sun with scattered thunderstorms. High 82F. Winds ESE at 10 to 15 mph. Chance of rain 50%.

  • Friday Night

    Variable clouds with scattered thunderstorms. Low 67F. Winds ESE at 10 to 15 mph. Chance of rain 50%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Pipers Meadow, San Antonio, TX

Updated: 11:13 PM CDT

Temperature: 72.3 °F Dew Point: 69 °F Humidity: 90% Wind: South at 3.2 mph Pressure: 29.60 in Hourly Precipitation: - Heat Index: - Graphs

Location: Misty Oaks, San Antonio, TX

Updated: 11:20 PM CDT

Temperature: 72.5 °F Dew Point: 67 °F Humidity: 84% Wind: ESE at 6.7 mph Pressure: - Hourly Precipitation: - Heat Index: 72 °F Graphs

Location: Wellesley Manor, San Antonio, TX

Updated: 11:20 PM CDT

Temperature: 72.5 °F Dew Point: 66 °F Humidity: 80% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: mainland sq, San Antonio, TX

Updated: 11:10 PM CDT

Temperature: 71.1 °F Dew Point: 66 °F Humidity: 84% Wind: SSW at 3.2 mph Pressure: 29.70 in Hourly Precipitation: - Heat Index: 70 °F Graphs

Location: French Creek Village, San Antonio, TX

Updated: 11:23 PM CDT

Temperature: 72.7 °F Dew Point: 70 °F Humidity: 90% Wind: SSE at 4.4 mph Pressure: 28.97 in Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: Alamo Farmsteads, San Antonio, TX

Updated: 11:23 PM CDT

Temperature: 71.4 °F Dew Point: 65 °F Humidity: 81% Wind: Calm Pressure: 29.16 in Hourly Precipitation: 0.02 in Heat Index: 72 °F Graphs

Location: West Wood Village, San Antonio, TX

Updated: 11:23 PM CDT

Temperature: 73.2 °F Dew Point: 70 °F Humidity: 90% Wind: SE at 5.8 mph Pressure: 29.15 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Braun Station, San Antonio, TX

Updated: 11:23 PM CDT

Temperature: 72.7 °F Dew Point: 72 °F Humidity: 99% Wind: ESE at 3.1 mph Pressure: 29.51 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Far West Side, San Antonio, TX

Updated: 11:20 PM CDT

Temperature: 67.8 °F Dew Point: 65 °F Humidity: 91% Wind: North at - Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Northwest Side, San Antonio, TX

Updated: 11:21 PM CDT

Temperature: 70.3 °F Dew Point: 46 °F Humidity: 42% Wind: North at - Pressure: 30.04 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: NW Crossing, San Antonio, TX

Updated: 10:00 PM CDT

Temperature: 71.8 °F Dew Point: 69 °F Humidity: 92% Wind: East at 6.0 mph Pressure: 29.83 in Hourly Precipitation: 0.01 in Heat Index: - Graphs

Location: Northwest Side, San Antonio, TX

Updated: 11:21 PM CDT

Temperature: 69.1 °F Dew Point: 61 °F Humidity: 76% Wind: North at - Pressure: 29.98 in Hourly Precipitation: - Heat Index: - Graphs

Location: New Territories, San Antonio, TX

Updated: 11:23 PM CDT

Temperature: 71.8 °F Dew Point: 70 °F Humidity: 93% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Jefferson, San Antonio, TX

Updated: 11:21 PM CDT

Temperature: 73.2 °F Dew Point: 71 °F Humidity: 92% Wind: North at - Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: Tanglewood, San Antonio, TX

Updated: 11:13 PM CDT

Temperature: 71.8 °F Dew Point: 70 °F Humidity: 94% Wind: SSW at 3.7 mph Pressure: 29.62 in Hourly Precipitation: - Heat Index: - Graphs

Location: Northwest Side, San Antonio, TX

Updated: 11:22 PM CDT

Temperature: 71.8 °F Dew Point: 69 °F Humidity: 92% Wind: North at - Pressure: 29.96 in Hourly Precipitation: - Heat Index: - Graphs

Location: North Central, San Antonio, TX

Updated: 11:20 PM CDT

Temperature: 72.1 °F Dew Point: 69 °F Humidity: 91% Wind: North at - Pressure: 29.79 in Hourly Precipitation: - Heat Index: - Graphs

Location: Edgecliff NW, San Antonio, TX

Updated: 11:04 PM CDT

Temperature: 72.1 °F Dew Point: 69 °F Humidity: 91% Wind: North at - Pressure: 29.79 in Hourly Precipitation: - Heat Index: - Graphs

Location: Oak Ridge Pointe, San Antonio, TX

Updated: 10:27 PM CDT

Temperature: 70.3 °F Dew Point: 68 °F Humidity: 92% Wind: SW at 3.7 mph Pressure: 29.85 in Hourly Precipitation: - Heat Index: - Graphs

Location: River Mist, San Antonio, TX

Updated: 11:23 PM CDT

Temperature: 73.2 °F Dew Point: 73 °F Humidity: 99% Wind: SSE at 1.6 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Braunridge, Helotes, TX

Updated: 11:23 PM CDT

Temperature: 71.5 °F Dew Point: 70 °F Humidity: 95% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: North San Antonio Hills, San Antonio, TX

Updated: 11:19 PM CDT

Temperature: 71.8 °F Dew Point: 71 °F Humidity: 97% Wind: SW at 3.1 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Castle Hills, San Antonio, TX

Updated: 11:11 PM CDT

Temperature: 70.9 °F Dew Point: 70 °F Humidity: 97% Wind: East at 2.7 mph Pressure: 29.88 in Hourly Precipitation: - Heat Index: - Graphs

Location: North Central, Castle Hills, TX

Updated: 11:21 PM CDT

Temperature: 72.5 °F Dew Point: 68 °F Humidity: 87% Wind: North at - Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: College Park, San Antonio, TX

Updated: 11:20 PM CDT

Temperature: 71.9 °F Dew Point: 68 °F Humidity: 89% Wind: SW at 1.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Cedar Springs 2, Helotes, TX

Updated: 11:11 PM CDT

Temperature: 70.7 °F Dew Point: 70 °F Humidity: 96% Wind: SE at 7.3 mph Pressure: 29.91 in Hourly Precipitation: - Heat Index: - Graphs

Location: Cedar Springs, Helotes, TX

Updated: 11:23 PM CDT

Temperature: 72.4 °F Dew Point: 67 °F Humidity: 84% Wind: South at 1.8 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Trophy Ridge, San Antonio, TX

Updated: 11:12 PM CDT

Temperature: 72.3 °F Dew Point: 69 °F Humidity: 89% Wind: SSW at 3.7 mph Pressure: 29.70 in Hourly Precipitation: - Heat Index: - Graphs

Location: Helotes Park Terrace, Helotes, TX

Updated: 11:23 PM CDT

Temperature: 70.6 °F Dew Point: 68 °F Humidity: 91% Wind: ENE at 6.3 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Helotes Park Terrace-2, Helotes, TX

Updated: 11:23 PM CDT

Temperature: 71.2 °F Dew Point: 69 °F Humidity: 93% Wind: SW at 2.5 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Shavano Park, Shavano Park, TX

Updated: 11:23 PM CDT

Temperature: 70.6 °F Dew Point: 69 °F Humidity: 96% Wind: SSE at 1.0 mph Pressure: 28.91 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: North Central, San Antonio, TX

Updated: 10:02 PM CDT

Temperature: 70.5 °F Dew Point: 70 °F Humidity: 100% Wind: North at - Pressure: 29.91 in Hourly Precipitation: - Heat Index: - Graphs

Location: Hunters Ridge, Helotes, TX

Updated: 11:13 PM CDT

Temperature: 71.4 °F Dew Point: 71 °F Humidity: 99% Wind: Calm Pressure: 29.75 in Hourly Precipitation: - Heat Index: - Graphs

Location: Far West Side, San Antonio, TX

Updated: 11:21 PM CDT

Temperature: 71.4 °F Dew Point: 68 °F Humidity: 90% Wind: North at - Pressure: 30.00 in Hourly Precipitation: - Heat Index: - Graphs

Location: Stillwater Ranch, San Antonio, TX

Updated: 11:14 PM CDT

Temperature: 72.0 °F Dew Point: 69 °F Humidity: 89% Wind: NNE at 1.7 mph Pressure: 29.85 in Hourly Precipitation: - Heat Index: - Graphs

Location: Hearthstone Ranch, Helotes, TX

Updated: 11:19 PM CDT

Temperature: 71.1 °F Dew Point: 69 °F Humidity: 93% Wind: South at 3.1 mph Pressure: 29.72 in Hourly Precipitation: - Heat Index: - Graphs

Location: King William, San Antonio, TX

Updated: 11:16 PM CDT

Temperature: 73.2 °F Dew Point: 71 °F Humidity: 91% Wind: SSW at 2.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 71 °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 
1047 PM CDT Tuesday may 5 2015 


Update... 
earlier evening model runs of rap and hrrr depicted a more 
progressive and short-term flash flood threat along I-35 before 
shifting east and north. Middle evening runs are now holding back the 
higher quantitative precipitation forecast values closer to I-35 and keeping a sustained threat 
for a few more hours. Areas farther to the east were included in 
case the training area solidifies into a complex as has been 
suggested in a recent NCEP mesoscale precipitation discussion. The 
hrrr continues to suggest a few storms following right moving 
supercell paths...so there may still be the potential for a few 
strong storms. However...will discredit much of the overnight 
severe threat for now as this behavior is not suggested by 
evening radar trends or Storm Prediction Center mesoanalysis tools. 


&& 


Previous discussion... /issued 819 PM CDT Tuesday may 5 2015/ 


Update... /locally heavy rain possible east of 281...north of I-10/ 


A cluster of showers and thunderstorms are concentrating along a 
conveyor belt of Gulf moisture feeding into the southern part of 
an upper low lifting NE into the Central Plains. Finer resolution 
models have shown increased rainfall intensities and quantitative precipitation forecast over 
south central Texas...with initial solutions widely varied early 
today...now converging into the weak training echo pattern seen 
this evening. Favorable jet dynamics will likely concentrate 
activity along and east of I-35 into late tonight. Probability of precipitation were 
increased over mainly the eastern sections with locally heavy 
rainfall mentioned. Rest of the forecast looks to be on 
track...but may need to make a late evening adjustment to probability of precipitation 
should the training pattern shift or dimininish. Rainfall amounts 
of 1 to 3 inches are expected...with flooding threats currently 
expected to be too isolated to warrant a flash Flood Advisory. 


Previous discussion... /issued 707 PM CDT Tuesday may 5 2015/ 


Update... 
please see the 00z aviation discussion below. 


Aviation... 
scattered convection continues along and east of Highway 281 this 
evening. We have included -shra for the next few hours along the 
I-35 corridor...then tempo groups for thunderstorms and rain between 03z-06z. For 
now...we did not include a mention of precipitation at kdrt as it 
appears activity will remain isolated. Ceilings will drop into IFR 
overnight and remain IFR through a good portion of Wednesday 
morning. Daytime heating and mixing will improve skies back to VFR 
after 18z. 


Previous discussion... /issued 236 PM CDT Tuesday may 5 2015/ 


Short term (tonight through Wednesday night)... 
upper air analysis this morning showed a negatively tilted trough 
from The Four Corners region to The Big Bend with a ridge 
extending from the southeast to the northern plains. The 250mb jet 
was across northern Mexico...but was less than 50 kts. The jet 
marked the boundary of moist middle-level air to the south and drier 
air to the north. At the surface winds continued from the 
southeast and dew point temperatures were from the low to upper 
60s. There was a dryline from Childress to Marathon. In the pre- 
first period this afternoon thunderstorms have formed along the 
dryline and are moving toward the east. Some storms may move into 
our northwestern counties. Storms will be moving into moisture 
rich environment and forecast soundings show steep middle-level lapse 
rates. Forecast cape is 1500 to 2000 j/kg. Some storms could be 
strong to severe with large hail the most likely threat. 


During the first period starting this evening...The Four Corners 
trough will move to the northeast into the Central Plains and 
flatten as it moves into the ridge. Another low will dig southward 
over the West Coast. This will produce southwesterly flow over 
Texas. The low levels will change very little with moist 
southeasterly flow continuing. The dryline will remain over West 
Texas as the main focus for thunderstorm development. The strong 
moist flow will keep the dryline west of our County Warning Area. We will have 
another low chance day for thunderstorms without any strong 
trigger. With dew point temperatures approaching 70 there will be 
strong instability and only a weak cap. Any storms that do form 
could be strong to severe. Storm Prediction Center has the western half of our area in 
the marginal risk for Wednesday afternoon and evening. 


Long term (thursday through tuesday)... 
the upper level low will continue southward over the West Coast 
Thursday. This feature will begin to move to the east Friday and 
then to the northeast over the weekend. The upper flow will remain 
southwesterly during this time frame. The only surface feature 
will be the dryline to the west and the low level flow will 
continue to be from the southeast keeping it there. This will mean 
an extended period of low chance probability of precipitation with a conditionally 
unstable atmosphere...but not trigger for convection. Instability 
will be sufficient for strong storms through this period. Monday 
and Monday night a cold front will move through the region. This 
may provide a better focus for storms over a wider area. 


&& 


Preliminary point temps/pops... 
Austin Camp Mabry 70 83 71 84 70 / 70 30 20 30 20 
Austin Bergstrom international Airport 70 83 71 84 71 / 70 30 20 30 20 
New Braunfels Muni Airport 69 83 71 84 71 / 70 30 20 30 20 
Burnet Muni Airport 67 82 69 82 69 / 60 30 20 30 20 
del Rio International Airport 70 84 71 89 71 / 30 30 30 20 20 
Georgetown Muni Airport 69 82 70 83 69 / 70 30 20 30 20 
Hondo Muni Airport 69 84 71 85 70 / 40 30 20 30 20 
San Marcos Muni Airport 69 83 71 84 70 / 70 30 20 30 20 
La Grange - Fayette regional 70 83 72 85 72 / 60 30 20 20 10 
San Antonio International Airport 69 84 71 84 71 / 50 30 20 30 20 
Stinson Muni Airport 70 84 72 85 71 / 50 20 20 30 20 


&& 


Ewx watches/warnings/advisories... 
Flash Flood Watch until 7 am CDT Wednesday for the following 
counties: Bastrop...Caldwell...Comal...De Witt...Fayette... 
Gonzales...Guadalupe...Hays...Lavaca...Lee...Travis...Williamson. 


&& 


$$ 


Mesoscale/aviation...24 
synoptic/grids...18 
public service/data collection...30 






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