Hazardous Weather Conditions
Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Overcast
28°C
82°F
| Humidity | 90% |
| Wind Speed | S 20 km/h |
| Barometer | 1016.5 mb (30.04 in) |
| Dewpoint | 26°C (79°F) |
| Visibility | 16 km |
| Heat Index | 33°C (91°F) |
| Last update | 13 Jul 9:56 am CDT |
Extended Forecast for
6 Miles NW San Marcos TX
Flood Watch July 13, 10:43am until July 13, 07:00pm
NOW until 7:00pm Sun
Flood Watch
Today
High: 31 °C
Chance
Showers then
Chance
T-stormsTonight
Low: 23 °C
Slight Chance
T-storms then
Mostly CloudyMonday
High: 33 °C
Mostly Cloudy
then Slight
Chance
T-stormsMonday Night
Low: 23 °C
Slight Chance
T-storms then
Mostly CloudyTuesday
High: 33 °C
Partly Sunny
Tuesday Night
Low: 23 °C
Mostly Cloudy
Wednesday
High: 34 °C
Mostly Sunny
Wednesday Night
Low: 22 °C
Mostly Clear
Detailed Forecast
Today
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 31. South wind 10 to 15 km/h becoming west northwest in the afternoon. Winds could gust as high as 30 km/h. New rainfall amounts between 2.5 and 5 mm possible.
Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Mostly cloudy, with a low around 23. Southeast wind 5 to 10 km/h.
Monday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 33. South wind 5 to 15 km/h. Chance of precipitation is 20%.
Monday Night
A slight chance of thunderstorms before 7pm. Mostly cloudy, with a low around 23. South wind around 10 km/h. Chance of precipitation is 10%.
Tuesday
Partly sunny, with a high near 33. South southeast wind 10 to 15 km/h, with gusts as high as 30 km/h.
Tuesday Night
Mostly cloudy, with a low around 23. South southeast wind 10 to 15 km/h, with gusts as high as 30 km/h.
Wednesday
Mostly sunny, with a high near 34. South wind 10 to 20 km/h, with gusts as high as 35 km/h.
Wednesday Night
Mostly clear, with a low around 22. South southeast wind 10 to 15 km/h, with gusts as high as 30 km/h.
Thursday
Mostly sunny, with a high near 34. South wind 10 to 15 km/h, with gusts as high as 30 km/h.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Mostly sunny, with a high near 34.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
6 Miles NW San Marcos TX
29.95°N 98.02°W (Elev. 935 m)
29.95°N 98.02°W (Elev. 935 m)
10:12 am CDT Jul 13, 2025
10am CDT Jul 13, 2025-6pm CDT Jul 19, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
