San Antonio, Texas Weather Conditions

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Current Conditions

  • 65°
  • Overcast
  • Wind: ENE 6 mph
  • Humidity: 93%
  • Visibility: 7.0 miles
  • Dew Point: 63°
  • Pressure: 30.04 in. -

Nowcast

  • Now as of 4:46 am CDT on May 22, 2015

    Isolated showers will be possible overnight. Rainfall accumulations will average less than 1/10 of an inch as activity slowly moves north.

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Next 12 Hours

5  am
8  am
11  am
2  pm
5  pm
Overcast
Overcast
Overcast
Overcast
Chance of a Thunderstorm
Chance of T-storms
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
67°
67°
73°
78°
79°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Chance of a Thunderstorm
  • High: 80 °
  • Low: 71 °
  • Chance of T-Storms
  • Saturday
  • Thunderstorm
  • High: 81 °
  • Low: 71 °
  • T-Storms
  • Sunday
  • Thunderstorm
  • High: 78 °
  • Low: 71 °
  • T-Storms
  • Monday
  • Chance of a Thunderstorm
  • High: 84 °
  • Low: 71 °
  • Chance of T-Storms
  • Tuesday
  • Chance of a Thunderstorm
  • High: 87 °
  • Low: 73 °
  • Chance of T-Storms

Forecast for San Antonio, Texas

Updated: 1:05 AM CDT on January 22, 2015

  • Friday

    Scattered showers and thunderstorms. High near 80F. Winds E at 10 to 15 mph. Chance of rain 50%.

  • Friday Night

    Partly cloudy during the evening followed by cloudy skies overnight. A stray shower or thunderstorm is possible. Low 71F. Winds ESE at 10 to 15 mph.

  • Saturday

    Thunderstorms. High 81F. Winds SE at 10 to 20 mph. Chance of rain 80%.

  • Saturday Night

    Thunderstorms - some locally heavy downpours are possible, especially overnight. Low 71F. Winds SE at 10 to 15 mph. Chance of rain 90%. 1 to 2 inches of rain expected.

  • Sunday

    Thunderstorms with locally heavy downpours. Potential for severe thunderstorms. High 78F. Winds SSE at 10 to 20 mph. Chance of rain 100%. 1 to 2 inches of rain expected.

  • Sunday Night

    Variably cloudy with scattered thunderstorms. Potential for severe thunderstorms. Low 71F. Winds ESE at 10 to 15 mph. Chance of rain 60%.

  • Monday

    Mixed clouds and sun with scattered thunderstorms. High 84F. Winds ESE at 10 to 15 mph. Chance of rain 60%.

  • Monday Night

    Variable clouds with scattered thunderstorms. Low 71F. Winds SE at 10 to 15 mph. Chance of rain 60%.

  • Tuesday

    Mixed clouds and sun with scattered thunderstorms. High 87F. Winds SSE at 10 to 15 mph. Chance of rain 60%.

  • Tuesday Night

    Clear skies with a few passing clouds. Low 73F. Winds ESE at 10 to 15 mph.

  • Wednesday

    Sunshine and clouds mixed. High 86F. Winds SE at 10 to 15 mph.

  • Wednesday Night

    Partial cloudiness early, with scattered showers and thunderstorms later during the night. Low 74F. Winds SE at 5 to 10 mph. Chance of rain 40%.

  • Thursday

    Variable clouds with scattered thunderstorms. High 86F. Winds SE at 10 to 15 mph. Chance of rain 50%.

  • Thursday Night

    Scattered clouds with the possibility of an isolated thunderstorm developing overnight. Low 73F. Winds SE at 10 to 15 mph. Chance of rain 30%.

  • Friday

    Scattered thunderstorms. High 86F. Winds SE at 10 to 20 mph. Chance of rain 60%.

  • Friday Night

    Partly cloudy. Low 73F. Winds SE at 10 to 15 mph.

  • Saturday

    Variable clouds with scattered thunderstorms. High 86F. Winds SE at 10 to 15 mph. Chance of rain 60%.

  • Saturday Night

    A few clouds. Low 73F. Winds SE at 10 to 15 mph.

  • Sunday

    Sunshine and clouds mixed. High 86F. Winds SE at 10 to 15 mph.

  • Sunday Night

    Mostly clear skies. Low 73F. Winds SE at 10 to 15 mph.

  • Monday

    Scattered thunderstorms in the morning, then partly cloudy late. High 86F. Winds SE at 10 to 20 mph. Chance of rain 50%.

  • Monday Night

    A few clouds. Low 74F. Winds SE at 10 to 15 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

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

Updated: 4:50 AM CDT

Temperature: 65.7 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Graphs

Location: Newell Commercial Properties LP, San Antonio, TX

Updated: 4:50 AM CDT

Temperature: 65.2 °F Dew Point: 63 °F Humidity: 94% Wind: East at 4.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Graphs

Location: LIME Factory, San Antonio, TX

Updated: 4:56 AM CDT

Temperature: 64.4 °F Dew Point: 63 °F Humidity: 95% Wind: NNE at 4.0 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Graphs

Location: King William, San Antonio, TX

Updated: 4:48 AM CDT

Temperature: 64.8 °F Dew Point: 63 °F Humidity: 94% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Graphs

Location: CPS Pecan Valley C678, San Antonio, TX

Updated: 4:50 AM CDT

Temperature: 65.8 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: 0.00 in Graphs

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

Updated: 4:50 AM CDT

Temperature: 66.4 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Graphs

Location: Jefferson, San Antonio, TX

Updated: 4:50 AM CDT

Temperature: 66.4 °F Dew Point: 63 °F Humidity: 90% Wind: North at - Pressure: 30.01 in Hourly Precipitation: 0.00 in Graphs

Location: Heritage Middle School C622, San Antonio, TX

Updated: 3:50 AM CDT

Temperature: 64.2 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: San Antonio Seale C140, San Antonio, TX

Updated: 4:50 AM CDT

Temperature: 64.4 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Graphs

Location: Harris Heights at Fort Sam Houston, San Antonio, TX

Updated: 4:55 AM CDT

Temperature: 64.4 °F Dew Point: 64 °F Humidity: 99% Wind: South at 6.0 mph Pressure: 30.21 in Hourly Precipitation: 0.00 in Graphs

Location: Monticello Park, San Antonio, TX

Updated: 4:53 AM CDT

Temperature: 64.9 °F Dew Point: 63 °F Humidity: 92% Wind: ESE at 1.6 mph Pressure: 29.87 in Hourly Precipitation: - Graphs

Location: West Wood Village, San Antonio, TX

Updated: 4:56 AM CDT

Temperature: 65.7 °F Dew Point: 63 °F Humidity: 91% Wind: Calm Pressure: 29.26 in Hourly Precipitation: 0.00 in Graphs

Location: Uptown, San Antonio, TX

Updated: 4:55 AM CDT

Temperature: 67.1 °F Dew Point: 64 °F Humidity: 88% Wind: North at - Pressure: 30.16 in Hourly Precipitation: 0.00 in Graphs

Location: Alamo Heights, San Antonio, TX

Updated: 4:56 AM CDT

Temperature: 64.9 °F Dew Point: 64 °F Humidity: 97% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Graphs

Location: kirby tx, Kirby, TX

Updated: 4:55 AM CDT

Temperature: 64.4 °F Dew Point: 63 °F Humidity: 96% Wind: NE at 3.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Graphs

Location: Calaveras Lake C59, San Antonio, TX

Updated: 4:50 AM CDT

Temperature: 64.9 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Graphs

Location: Pipers Meadow, San Antonio, TX

Updated: 4:54 AM CDT

Temperature: 65.1 °F Dew Point: 62 °F Humidity: 91% Wind: East at 1.7 mph Pressure: 29.72 in Hourly Precipitation: - Graphs

Location: Uptown, San Antonio, TX

Updated: 4:54 AM CDT

Temperature: 66.2 °F Dew Point: 61 °F Humidity: 84% Wind: North at - Pressure: 30.15 in Hourly Precipitation: 0.00 in Graphs

Location: Sayers, Adkins, TX

Updated: 4:47 AM CDT

Temperature: 64.7 °F Dew Point: 63 °F Humidity: 94% Wind: NE at 5.3 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Graphs

Location: Elm Creek Elementary C501, Atascosa, TX

Updated: 4:50 AM CDT

Temperature: 66.0 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: North Central, Castle Hills, TX

Updated: 4:50 AM CDT

Temperature: 64.6 °F Dew Point: 63 °F Humidity: 95% Wind: North at - Pressure: 30.14 in Hourly Precipitation: 0.00 in Graphs

Location: Misty Oaks, San Antonio, TX

Updated: 4:56 AM CDT

Temperature: 64.8 °F Dew Point: 60 °F Humidity: 85% Wind: ESE at 5.1 mph Pressure: - Hourly Precipitation: - Graphs

Location: Trophy Ridge, San Antonio, TX

Updated: 4:44 AM CDT

Temperature: 64.9 °F Dew Point: 62 °F Humidity: 90% Wind: Calm Pressure: 29.80 in Hourly Precipitation: - Graphs

Location: Castle Hills, San Antonio, TX

Updated: 4:53 AM CDT

Temperature: 63.5 °F Dew Point: 63 °F Humidity: 97% Wind: North at 4.3 mph Pressure: 30.00 in Hourly Precipitation: - Graphs

Location: Föhrenweg, San Antonio, TX

Updated: 4:51 AM CDT

Temperature: 70.0 °F Dew Point: 62 °F Humidity: 74% Wind: North at - Pressure: 30.13 in Hourly Precipitation: - Graphs

Location: MesoWest, Leming, TX

Updated: 1:55 AM CDT

Temperature: 65 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: San Antonio Northwest C23, San Antonio, TX

Updated: 4:50 AM CDT

Temperature: 64.2 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Graphs

Location: Marshall Meadows, San Antonio, TX

Updated: 4:55 AM CDT

Temperature: 65.5 °F Dew Point: 64 °F Humidity: 96% Wind: ENE at 3.4 mph Pressure: 30.12 in Hourly Precipitation: 0.00 in Graphs

Location: Wellesley Manor, San Antonio, TX

Updated: 4:55 AM CDT

Temperature: 65.1 °F Dew Point: 59 °F Humidity: 82% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Graphs

Location: Northwest Side, San Antonio, TX

Updated: 4:54 AM CDT

Temperature: 66.6 °F Dew Point: 62 °F Humidity: 84% Wind: North at - Pressure: 29.91 in Hourly Precipitation: - Graphs

Location: San Antonio IH35 C1069, Windcrest, TX

Updated: 4:50 AM CDT

Temperature: 64.0 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Graphs

Location: Dover, Converse, TX

Updated: 4:44 AM CDT

Temperature: 63.7 °F Dew Point: 60 °F Humidity: 89% Wind: WSW at 1.6 mph Pressure: 30.00 in Hourly Precipitation: - Graphs

Location: mainland sq, San Antonio, TX

Updated: 4:42 AM CDT

Temperature: 64.6 °F Dew Point: 59 °F Humidity: 82% Wind: ENE at 2.7 mph Pressure: 29.82 in Hourly Precipitation: - Graphs

Location: Elm Creek, San Antonio, TX

Updated: 4:42 AM CDT

Temperature: 63.7 °F Dew Point: 63 °F Humidity: 99% Wind: NE at 1.7 mph Pressure: 30.03 in Hourly Precipitation: - Graphs

Location: Country Place Subdivision, Adkins, TX

Updated: 4:43 AM CDT

Temperature: 64.4 °F Dew Point: 62 °F Humidity: 90% Wind: ENE at 5.0 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in 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 
406 am CDT Friday may 22 2015 


Short term (today through saturday)... 
a Flash Flood Watch will likely be issued within the next 12 hours 
or so...given the strong storm system approaching Texas. Scattered 
showers and a few thunderstorms will continue to develop over the 
area...but the heaviest rainfall potential is not expected to 
begin until Saturday afternoon. 


A shallow frontal inversion today will keep cooler than normal 
temperatures and limit the potential for persistent deep convection. A 
few thunderstorms moving inland from the coastal Bend will be in a 
precipitable water region of around 1.8 inches...so there could be a few cell 
clusters that produce rainfall amounts over an inch over mainly 
the coastal prairies. While runoff concerns are not anticipated 
for today...the rains today will continue to keep soils near 
saturation and enhance concerns for the heavy rain event this 
weekend. 


Surface winds should turn more southeasterly late this 
afternoon...leading to increased potential for surface based 
convection late today. However...most of the model data show 
limited deep convection through early Saturday...with the Canadian 
being one exception that develops an early Saturday morning 
complex over the Edwards Plateau. Late Saturday...more models come 
into alignment on ramping up higher precipitation amounts. With 
the event only just beginning will discuss this environment in 
further detail in the long term section. 


&& 


Long term (saturday night through thursday)... 
afternoon heating is expected to be modest due to the near 2 inch 
precipitable water values keeping clouds abundant for much of the day. A few 
peeks of sunshine could late Saturday afternoon could present a 
minor severe concern through Saturday evening...but the 
development of a large heavy rain producing complex late in the 
day is expected to present the highest impact over the area 
Saturday evening into early Sunday. With recent model trends 
developing a slightly broader upper trough just west of Texas during 
this period...the quantitative precipitation forecast forecasts among the recent synoptic model 
runs continue to be varied on timing and location of the higher 
precipitation amounts. Will hold off the Flash Flood Watch 
issuance and give the models another shot to come into better 
alignment before adding better details on the event timing. 
Forecast rainfall totals remain centered around this higher impact 
period from Saturday afternoon through early Sunday evening...and 
would suggest widespread 1-3 inch rains with isolated 6 inch 
amounts possible. 


A well-developed mesoscale convective system sweeping across Texas would likely help provide 
some relative stability for late Sunday...but the quantitative precipitation forecast patterns in 
the most of the synoptic model forecasts do not suggest such a 
complex. Should there be smaller...progressive storm clusters as 
suggested...the atmosphere will reload quickly with strong to 
severe storms in addition to the training and heavy rain threats. 
Convective available potential energy are suggested to approach 4000 j/kg by the GFS Sunday which 
would combine with ample wind shear for an hp supercell threat. 


The lifting of the first lobe ejection of the upper trough late 
Sunday would suggest relative minima for rain chances late Sunday 
evening into early Monday. 00z models are showing better 
agreement on a secondary lobe to move into northwest Texas and increase 
storm potential for late Monday into early Tuesday. The pattern 
aloft is expected to flatten out to offer some potential for 
reduced thunderstorm potential for the remainder of the forecast 
period...but a general cyclical troughing pattern remains over 
the southwestern US through at least Thursday. 


&& 


Preliminary point temps/pops... 
Austin Camp Mabry 78 71 82 70 79 / 40 30 50 70 80 
Austin Bergstrom international Airport 79 70 82 70 79 / 40 30 50 70 80 
New Braunfels Muni Airport 80 71 82 70 80 / 50 30 50 70 80 
Burnet Muni Airport 76 69 80 68 78 / 40 30 60 70 80 
del Rio International Airport 84 71 82 69 89 / 40 30 60 60 30 
Georgetown Muni Airport 77 70 81 69 78 / 40 30 50 70 80 
Hondo Muni Airport 79 71 81 69 83 / 50 30 50 80 70 
San Marcos Muni Airport 78 71 81 70 79 / 40 30 50 70 80 
La Grange - Fayette regional 80 72 83 72 80 / 40 30 50 50 80 
San Antonio International Airport 80 72 82 69 81 / 50 30 50 70 70 
Stinson Muni Airport 80 72 83 71 82 / 50 30 50 70 70 


&& 


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


$$ 


Mesoscale/aviation...Hampshire 
synoptic/grids...Oaks 






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