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

19°C

67°F

Humidity 97%
Wind Speed NE 7 km/h
Barometer 1011.1 mb (29.88 in)
Dewpoint 19°C (66°F)
Visibility 16 km
Last update 12 May 2:56 am CDT
Extended Forecast for

2 Miles E San Marcos TX

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 19. East northeast wind around 10 km/h.

    Low: 19 °C

    Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly before 4pm. Patchy fog between 8am and noon. Otherwise, mostly cloudy, with a high near 28. East northeast wind 10 to 15 km/h becoming south in the afternoon. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    High: 28 °C

    Chance
    T-storms and
    Patchy Fog

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly between 7pm and 10pm. Mostly cloudy, with a low around 22. South southeast wind 10 to 15 km/h.

    Low: 22 °C

    Chance
    T-storms

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 1pm. Some of the storms could be severe. Cloudy, then gradually becoming mostly sunny, with a high near 31. South southeast wind 10 to 15 km/h becoming west southwest in the morning. Chance of precipitation is 60%.

    High: 31 °C

    Severe
    Thunderstorms

  • Monday Night

    Monday Night: Mostly clear, with a low around 18. North northeast wind 10 to 15 km/h decreasing to 5 to 10 km/h in the evening.

    Low: 18 °C

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 32. Northwest wind 5 to 15 km/h becoming east northeast in the afternoon.

    High: 32 °C

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 18. East wind 10 to 15 km/h.

    Low: 18 °C

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 31. East southeast wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h.

    High: 31 °C

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 21. Southeast wind 15 to 25 km/h, with gusts as high as 35 km/h.

    Low: 21 °C

    Chance
    T-storms

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 19. East northeast wind around 10 km/h.
Sunday
A 50 percent chance of showers and thunderstorms, mainly before 4pm. Patchy fog between 8am and noon. Otherwise, mostly cloudy, with a high near 28. East northeast wind 10 to 15 km/h becoming south in the afternoon. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly between 7pm and 10pm. Mostly cloudy, with a low around 22. South southeast wind 10 to 15 km/h.
Monday
Showers and thunderstorms likely, mainly after 1pm. Some of the storms could be severe. Cloudy, then gradually becoming mostly sunny, with a high near 31. South southeast wind 10 to 15 km/h becoming west southwest in the morning. Chance of precipitation is 60%.
Monday Night
Mostly clear, with a low around 18. North northeast wind 10 to 15 km/h decreasing to 5 to 10 km/h in the evening.
Tuesday
Sunny, with a high near 32. Northwest wind 5 to 15 km/h becoming east northeast in the afternoon.
Tuesday Night
Partly cloudy, with a low around 18. East wind 10 to 15 km/h.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 31. East southeast wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 21. Southeast wind 15 to 25 km/h, with gusts as high as 35 km/h.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 29.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 30.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Mostly sunny, with a high near 31.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E San Marcos TX
 29.88°N 97.91°W (Elev. 597 m)
Last Update:
2:42 am CDT May 12, 2024
Forecast Valid:
3am CDT May 12, 2024-6pm CDT May 18, 2024
 
Forecast Discussion
 
Get as KML Get as XML

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