San Marcos, Texas Weather Conditions

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Current Conditions

  • 41°
  • Clear
  • Wind: Calm
  • Humidity: 76%
  • Visibility: 10.0 miles
  • Dew Point: 34°
  • Pressure: 30.39 in. +

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Next 12 Hours

12  am
3  am
6  am
9  am
12  pm
Clear
Clear
Clear
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
46°
43°
45°
52°
64°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Partly Cloudy
  • High: 72 °
  • Low: 54 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 79 °
  • Low: 63 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 79 °
  • Low: 59 °
  • Partly Cloudy
  • Monday
  • Chance of Rain
  • High: 68 °
  • Low: 45 °
  • Chance of Rain
  • Tuesday
  • Partly Cloudy
  • High: 59 °
  • Low: 54 °
  • Partly Cloudy

Forecast for San Marcos, Texas

Updated: 9:00 PM CST on November 27, 2014

  • Friday

    Partly cloudy. High of 72F. Winds from the South at 5 to 15 mph.

  • Friday Night

    Partly cloudy. Low of 54F. Winds from the South at 5 to 10 mph.

  • Saturday

    Partly cloudy. High of 79F. Breezy. Winds from the SSW at 10 to 20 mph.

  • Saturday Night

    Partly cloudy. Fog overnight. Low of 63F. Breezy. Winds from the South at 10 to 20 mph.

  • Sunday

    Partly cloudy. High of 79F. Winds from the SSW at 10 to 15 mph.

  • Sunday Night

    Partly cloudy. Fog overnight. Low of 59F. Winds from the South at 5 to 10 mph.

  • Monday

    Overcast with a chance of rain in the afternoon. Fog early. High of 68F. Winds from the ESE at 5 to 20 mph shifting to the North in the afternoon. Chance of rain 20%.

  • Monday Night

    Partly cloudy in the evening, then overcast. Low of 45F. Breezy. Winds from the North at 10 to 20 mph.

  • Tuesday

    Partly cloudy in the morning, then overcast. High of 59F. Winds from the NNE at 5 to 15 mph.

  • Tuesday Night

    Mostly cloudy. Low of 54F. Winds less than 5 mph.

  • Wednesday

    Mostly cloudy. High of 68F. Winds from the SSE at 5 to 10 mph.

  • Wednesday Night

    Mostly cloudy with a chance of rain. Fog overnight. Low of 57F. Winds from the SSE at 5 to 10 mph. Chance of rain 20%.

  • Thursday

    Partly cloudy with a chance of rain. Fog early. High of 75F. Winds from the South at 5 to 15 mph. Chance of rain 40%.

  • Thursday Night

    Mostly cloudy. Fog overnight. Low of 52F. Winds from the SSE at 5 to 10 mph.

  • Friday

    Overcast. Fog early. High of 66F. Winds less than 5 mph.

  • Friday Night

    Overcast. Fog overnight. Low of 48F. Winds less than 5 mph.

  • Saturday

    Mostly cloudy with a chance of rain. Fog early. High of 61F. Winds less than 5 mph. Chance of rain 20%.

  • Saturday Night

    Overcast with a chance of rain. Fog overnight. Low of 46F. Winds less than 5 mph. Chance of rain 30%.

  • Sunday

    Overcast with a chance of rain. Fog early. High of 59F. Winds less than 5 mph. Chance of rain 20%.

  • Sunday Night

    Overcast with a chance of a thunderstorm. Fog overnight. Low of 39F. Winds from the NNE at 5 to 10 mph. Chance of rain 30% with rainfall amounts near 0.3 in. possible.

  • Monday

    Clear. Fog early. High of 55F. Winds from the North at 5 to 10 mph.

  • Monday Night

    Clear. Fog overnight. Low of 39F. Winds from the North at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Spring Lake Hills, San Marcos, TX

Updated: 12:35 AM CST

Temperature: 49.6 °F Dew Point: 37 °F Humidity: 62% Wind: Calm Pressure: 30.54 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: Siesta Verde, San Marcos, TX

Updated: 12:36 AM CST

Temperature: 42.3 °F Dew Point: 36 °F Humidity: 77% Wind: Calm Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Lime Kiln, San Marcos, TX

Updated: 12:36 AM CST

Temperature: 45.2 °F Dew Point: 36 °F Humidity: 71% Wind: Calm Pressure: 30.36 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Hunter Ridge, San Marcos, TX

Updated: 12:36 AM CST

Temperature: 41.7 °F Dew Point: 36 °F Humidity: 81% Wind: Calm Pressure: 30.38 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Oak Meadows, San Marcos, TX

Updated: 12:35 AM CST

Temperature: 48.0 °F Dew Point: 36 °F Humidity: 62% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Goodger Farm, Martindale, TX

Updated: 12:36 AM CST

Temperature: 38.3 °F Dew Point: 38 °F Humidity: 99% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Silverado, Kyle, TX

Updated: 12:27 AM CST

Temperature: 46.4 °F Dew Point: 12 °F Humidity: 25% Wind: WSW at 2.2 mph Pressure: 30.23 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Downtown, Staples, TX

Updated: 12:36 AM CST

Temperature: 47.2 °F Dew Point: 37 °F Humidity: 66% Wind: Calm Pressure: 30.38 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Fall Creek, Kyle, TX

Updated: 12:35 AM CST

Temperature: 43.5 °F Dew Point: 36 °F Humidity: 76% Wind: Calm Pressure: 29.14 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: River Mountain Ranch, Wimberley, TX

Updated: 12:36 AM CST

Temperature: 46.2 °F Dew Point: 36 °F Humidity: 68% Wind: SW at 1.1 mph Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Havenwood, New Braunfels, TX

Updated: 12:35 AM CST

Temperature: 38.0 °F Dew Point: 34 °F Humidity: 87% Wind: Calm Pressure: 30.18 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: paradise hills, Wimberley, TX

Updated: 12:36 AM CST

Temperature: 47.8 °F Dew Point: 8 °F Humidity: 19% Wind: SE at 5.4 mph Pressure: 29.00 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: rolling oaks, New Braunfels, TX

Updated: 12:36 AM CST

Temperature: 41.4 °F Dew Point: 37 °F Humidity: 85% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Un Encino Rancho - Box Canyon, Wimberley, TX

Updated: 12:32 AM CST

Temperature: 43.1 °F Dew Point: 36 °F Humidity: 76% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: MesoWest GOODWN TX US UPR, New Braunfels, TX

Updated: 10:10 PM CST

Temperature: 43 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Hilltop Ridge - The Summit, New Braunfels, TX

Updated: 12:26 AM CST

Temperature: 43.6 °F Dew Point: 36 °F Humidity: 75% Wind: Calm Pressure: 30.36 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: River Road/Lange Road, Wimberley, TX

Updated: 12:23 AM CST

Temperature: 35.1 °F Dew Point: 34 °F Humidity: 95% Wind: Calm Pressure: 30.29 in Hourly Precipitation: - Windchill: 35 °F Graphs

Location: MesoWest LKHART TX US UPR, Lockhart, TX

Updated: 11:00 PM CST

Temperature: 43 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Sierra West Section 2, Driftwood, TX

Updated: 12:36 AM CST

Temperature: 41.7 °F Dew Point: 37 °F Humidity: 83% Wind: Calm Pressure: 30.41 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: River Chase, New Braunfels, TX

Updated: 12:32 AM CST

Temperature: 46.4 °F Dew Point: 31 °F Humidity: 55% Wind: Calm Pressure: 30.13 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Guadalupe River at Riverside Path, Canyon Lake, TX

Updated: 12:36 AM CST

Temperature: 36.7 °F Dew Point: 36 °F Humidity: 97% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: RAWS AUSTIN WATER QD TX US, Driftwood, TX

Updated: 11:48 PM CST

Temperature: 41 °F Dew Point: 35 °F Humidity: 80% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Gruene Crossing, New Braunfels, TX

Updated: 12:36 AM CST

Temperature: 40.6 °F Dew Point: 20 °F Humidity: 43% Wind: Calm Pressure: 29.56 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Preiss Heights, New Braunfels, TX

Updated: 12:36 AM CST

Temperature: 39.1 °F Dew Point: 35 °F Humidity: 86% Wind: Calm Pressure: 30.34 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Flying Horses Ranch, Buda, TX

Updated: 12:36 AM CST

Temperature: 41.5 °F Dew Point: 35 °F Humidity: 78% Wind: Calm Pressure: 30.36 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Canyon Falls RV Park, Canyon Lake, TX

Updated: 12:36 AM CST

Temperature: 39.2 °F Dew Point: 33 °F Humidity: 78% Wind: Calm Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Garlic Creek West, Buda, TX

Updated: 12:24 AM CST

Temperature: 41.3 °F Dew Point: 36 °F Humidity: 82% Wind: Calm Pressure: 29.79 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Garlic Creek, Buda, TX

Updated: 12:22 AM CST

Temperature: 40.3 °F Dew Point: 35 °F Humidity: 81% Wind: West at 2.2 mph Pressure: 30.29 in Hourly Precipitation: - Windchill: 40 °F Graphs

Location: Dryden Lane, Buda, TX

Updated: 12:36 AM CST

Temperature: 39.7 °F Dew Point: 35 °F Humidity: 82% Wind: North at - Pressure: 30.41 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Oakwood Estates, New Braunfels, TX

Updated: 12:35 AM CST

Temperature: 43.7 °F Dew Point: 38 °F Humidity: 80% Wind: Calm Pressure: 30.36 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: LCYC, Canyon Lake, TX

Updated: 12:34 AM CST

Temperature: 50.8 °F Dew Point: 41 °F Humidity: 68% Wind: Calm Pressure: 30.34 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: La Ventana, Driftwood, TX

Updated: 12:23 AM CST

Temperature: 43.1 °F Dew Point: 35 °F Humidity: 74% Wind: Calm Pressure: 30.34 in Hourly Precipitation: 0.00 in Windchill: 43 °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 
1120 PM CST Thursday Nov 27 2014 


Aviation... 
forecast models have pushed back the onset of MVFR ceilings to the 
12-14z time frame. We still expect these ceilings to scatter out or 
dissipated quickly between 16z and 18z. Otherwise...VFR with 
moderate winds and some gusts to 20kt at kdrt through 23z. Look 
for few-sky clear and light winds after 00z Saturday...but expect MVFR 
ceilings at the I-35 sites near 12z Saturday. 


&& 


Previous discussion... /issued 1010 PM CST Thursday Nov 27 2014/ 


Update... /freshen up of temperature trends/ 
current forecast remains on track...save for a few valleys that 
have seen temperatures fall to forecast lows already. As dew 
points and southerly winds return...expect overnight temperatures 
to not fluctuate much through morning. 


Previous discussion... /issued 542 PM CST Thursday Nov 27 2014/ 


Aviation... 
VFR will give way to MVFR and possibly IFR at all taf sites after 
10z as southerly flow commences and brings in moist Gulf air. IFR 
ceilings are most likely at kdrt and least likely at kaus over the 
next 24 hours. Ceilings should scatter out or rise to VFR after 17z Friday. 


Previous discussion... /issued 311 PM CST Thursday Nov 27 2014/ 


Short term (today through friday)... 
rather benign pattern has kept central Texas with clear skies and 
mild temperatures. This pattern should continue through the short 
term period with only difference of return flow setting up tonight 
and through Friday. Hi res models as well as 12z synoptic models 
indicate moisture advecting from the Gulf through southern Texas 
and the Rio Grande Valley. WRF simulated GOES-r depicts stratus 
deck to develop along the River Valley and spread up to del Rio 
and eventually up on the Escarpment by early morning. This 
moisture should remain low level however and thus clear to partly 
cloudy by the afternoon. 


Long term (friday night through wednesday)... 
a weekend of return flow should increase surface moisture through the 
weekend and moisten the boundary layer along and east of the i35 
corridor. By late Saturday night and early Sunday morning...a weak 
500 mb shortwave and surface troughing may produce some light shower 
activity in the eastern County Warning Area. Enough to warrant slight chance mention. 


By middle day Monday...a cold front will push south through the state 
and arrive in the northern County Warning Area. Again...a slight chance for 
showers with this front...mainly east where the aforementioned 
moisture is a bit better. This should make Tuesday morning the 
coldest of the next 7 days but only into the middle 30s. Upper level 
ridging and return flow sets back up...perhaps suspiciously too 
rapidly...late Tuesday night and should warm lows up into the 40s. 


The next significant frontal system looks like it will be late 
week or early weekend depending on which model you prefer. 
Significant model discrepancies in the synoptic patterns prevents 
much details beyond this time frame. However it is Worth noting 
that the GFS produces a broad upper trough over The Four Corners 
region which develops substantial quantitative precipitation forecast. Euro is essentially a polar 
opposite. So to prevent being the boy who cried rain...will 
continue to consider this...highly dubious. 


Tb3 


&& 


Preliminary point temps/pops... 
Austin Camp Mabry 43 70 53 78 62 / 0 0 - - 10 
Austin Bergstrom international Airport 39 71 52 78 61 / 0 0 - - 10 
New Braunfels Muni Airport 44 72 52 78 62 / 0 0 - - 10 
Burnet Muni Airport 41 68 50 75 59 / 0 0 0 - - 
del Rio International Airport 47 70 45 74 45 / 0 0 0 0 0 
Georgetown Muni Airport 38 68 52 77 59 / 0 0 0 - 10 
Hondo Muni Airport 42 70 47 76 51 / 0 0 - - 10 
San Marcos Muni Airport 42 71 52 77 61 / 0 0 - - 10 
La Grange - Fayette regional 41 71 56 78 63 / 0 - - 10 10 
San Antonio International Airport 45 71 52 76 64 / 0 0 - - 10 
Stinson Muni Airport 44 72 52 77 63 / 0 0 - - 10 


&& 


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


$$ 


Mesoscale/aviation...26 
synoptic/grids...18 



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