


Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
78°F
26°C
Humidity | 97% |
Wind Speed | SE 9 mph |
Barometer | 29.80 in (1008.0 mb) |
Dewpoint | 77°F (25°C) |
Visibility | 10.00 mi |
Heat Index | 81°F (27°C) |
Last update | 18 May 2:56 am CDT |
Extended Forecast for
Mountain City TX
Overnight
Low: 75 °F
Mostly Cloudy
Sunday
High: 95 °F
Haze then
Mostly CloudySunday Night
Low: 73 °F
Mostly Cloudy
Monday
High: 96 °F
Mostly Cloudy
then Slight
Chance
T-stormsMonday Night
Low: 72 °F
Isolated
T-stormsTuesday
High: 96 °F
Isolated
T-stormsTuesday Night
Low: 67 °F
Partly Cloudy
Wednesday
High: 94 °F
Partly Sunny
Wednesday Night
Low: 68 °F
Mostly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a low around 75. South southeast wind around 10 mph.
Sunday
Widespread haze between 7am and 11am. Mostly cloudy, with a high near 95. Heat index values as high as 102. South wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 73. South wind around 15 mph, with gusts as high as 30 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 96. Heat index values as high as 105. South wind 10 to 15 mph, with gusts as high as 30 mph.
Monday Night
Isolated showers and thunderstorms before 1am. Partly cloudy, with a low around 72. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tuesday
Isolated showers and thunderstorms before 1pm. Mostly sunny, with a high near 96. South wind around 5 mph becoming north in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 67. Northeast wind around 5 mph.
Wednesday
Partly sunny, with a high near 94. East wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 68. East wind 5 to 10 mph becoming south southeast after midnight.
Thursday
Isolated showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 65.
Friday
Sunny, with a high near 94.
Friday Night
Partly cloudy, with a low around 68.
Saturday
Mostly sunny, with a high near 96.
Additional Forecasts and Information
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ABOUT 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)
2:48 am CDT May 18, 2025
3am CDT May 18, 2025-6pm CDT May 24, 2025