



Heavy Rain From the Plains to the Northeast; Heat Wave Begins
Severe thunderstorms and heavy rainfall are likely across parts of the Northeast, portions of the northern and central Plains, and the Ohio Valley. Portions of northeast Missouri and central Illinois could experience locally significant flash flooding. Dangerously hot conditions are expected in the Central Plains, Lower and Middle Mississippi Valley, and Southeast. Read More >
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
A Few Clouds
87°F
31°C
Humidity | 65% |
Wind Speed | S 14 G 20 mph |
Barometer | 30.08 in (1017.8 mb) |
Dewpoint | 74°F (23°C) |
Visibility | 10.00 mi |
Heat Index | 95°F (35°C) |
Last update | 20 Jul 12:56 pm CDT |
San Marcos TX
This Afternoon
High: 93 °F
Partly Sunny
Tonight
Low: 76 °F
Mostly Cloudy
Monday
High: 97 °F
Partly Sunny
Monday Night
Low: 75 °F
Partly Cloudy
Tuesday
High: 96 °F
Partly Sunny
Tuesday Night
Low: 75 °F
Mostly Cloudy
Wednesday
High: 97 °F
Mostly Sunny
Wednesday Night
Low: 75 °F
Mostly Clear
Thursday
High: 97 °F
Sunny
Detailed Forecast
Additional Forecasts and Information
ABOUT THIS FORECAST
29.9°N 97.91°W (Elev. 640 ft)