National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

61°F

16°C

Humidity 93%
Wind Speed NE 9 mph
Barometer 30.20 in (1022.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 8 Nov 9:56 am CST
Extended Forecast for

2 Miles W San Marcos TX

  • Today

    Today: Showers. High near 62. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 62 °F

    Showers

  • Tonight

    Tonight: Showers. Low around 55. Northeast wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Showers

  • Monday

    Monday: Showers. High near 66. Northeast wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 66 °F

    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 70. Calm wind.

    High: 70 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Veterans Day

    Veterans Day: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 76. Calm wind.

    High: 76 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 56. Light and variable wind becoming north northwest 5 to 10 mph after midnight.

    Low: 56 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 73. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Showers. High near 62. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Showers. Low around 55. Northeast wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Showers. High near 66. Northeast wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 54. Calm wind.
Tuesday
Mostly cloudy, with a high near 70. Calm wind.
Tuesday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 57. Calm wind.
Veterans Day
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 76. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 56. Light and variable wind becoming north northwest 5 to 10 mph after midnight.
Thursday
Mostly sunny, with a high near 73. North wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 71.
Friday Night
Clear, with a low around 46.
Saturday
Sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W San Marcos TX
 29.88°N 97.97°W (Elev. 699 ft)
Last Update:
10:32 am CST Nov 8, 2026
Forecast Valid:
10am CST Nov 8, 2026-6pm CST Nov 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation