Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
86°F
30°C
| Humidity | 67% |
| Wind Speed | SE 12 mph |
| Barometer | 30.17 in (1020.6 mb) |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 94°F (34°C) |
| Last update | 16 Sep 9:56 pm CDT |
Extended Forecast for
Mountain City TX
Tonight
Low: 75 °F
Partly Cloudy
Thursday
High: 98 °F
Mostly Sunny
then Slight
Chance
T-stormsThursday Night
Low: 73 °F
Slight Chance
T-storms then
Partly CloudyFriday
High: 97 °F
Sunny
Friday Night
Low: 72 °F
Mostly Clear
Saturday
High: 97 °F
Sunny
Saturday Night
Low: 72 °F
Mostly Clear
Sunday
High: 97 °F
Mostly Sunny
Sunday Night
Low: 74 °F
Partly Cloudy
Detailed Forecast
Tonight
Partly cloudy, with a low around 75. Southeast wind 5 to 10 mph becoming light south after midnight.
Thursday
A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 98. Heat index values as high as 103. Light northeast wind becoming east 5 to 10 mph in the morning.
Thursday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 73. East southeast wind 5 to 10 mph becoming light south southeast after midnight.
Friday
Sunny, with a high near 97. Heat index values as high as 100. Light east wind becoming east southeast 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 72. East southeast wind 5 to 10 mph becoming light and variable after midnight.
Saturday
Sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 72. South wind around 5 mph.
Sunday
Mostly sunny, with a high near 97. Calm wind becoming south around 5 mph in the morning.
Sunday Night
Partly cloudy, with a low around 74. South southeast wind around 5 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 73.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 96.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Mountain City TX
30.04°N 97.89°W (Elev. 837 ft)
30.04°N 97.89°W (Elev. 837 ft)
9:44 pm CDT Sep 16, 2026
10pm CDT Sep 16, 2026-6pm CDT Sep 23, 2026
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