Summer Heat In Multiple Spots
A large dome of high pressure is expected to deliver summer heat with humidity in multiple sections of the country to start off the week. Excessive heat warnings and heat advisories are in effect across the south-central Plains, Mid to Lower Mississippi Valley and from the Mid-Atlantic into the Northeast. This includes the cities of New York, Philadelphia, Dallas, Oklahoma City and Kansas City. Read More >
Hazardous Weather Conditions
Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Overcast
81°F
27°C
| Humidity | 85% |
| Wind Speed | S 9 mph |
| Barometer | 29.95 in (1013.1 mb) |
| Dewpoint | 76°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 87°F (31°C) |
| Last update | 19 Aug 2:56 am CDT |
Extended Forecast for
4 Miles SSW San Marcos TX
-
Overnight
Mostly Cloudy
Low: 77 °F
-
Monday
Hot
High: 101 °F
-
Monday
NightIncreasing
CloudsLow: 75 °F
-
Tuesday
Hot
High: 100 °F
-
Tuesday
Night
Partly Cloudy
Low: 74 °F
-
Wednesday
Hot
High: 100 °F
-
Wednesday
NightPartly Cloudy
Low: 74 °F
-
Thursday
Mostly Sunny
High: 98 °F
-
Thursday
NightPartly Cloudy
Low: 74 °F
Detailed Forecast
Overnight
Mostly cloudy, with a low around 77. South wind 5 to 10 mph.
Monday
Cloudy through mid morning, then gradual clearing and hot, with a high near 101. Heat index values as high as 108. South wind 5 to 10 mph.
Monday Night
Increasing clouds, with a low around 75. Southeast wind 5 to 10 mph.
Tuesday
Mostly sunny and hot, with a high near 100. Heat index values as high as 106. South wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph.
Wednesday
Mostly sunny and hot, with a high near 100. South southeast wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 74. Southeast wind 5 to 15 mph.
Thursday
Mostly sunny, with a high near 98. South wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 74. South wind 5 to 15 mph.
Friday
Mostly sunny, with a high near 98.
Friday Night
Partly cloudy, with a low around 74.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 97.
Saturday Night
Partly cloudy, with a low around 74.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 96.
Additional Forecasts and Information
Point Forecast:
4 Miles SSW San Marcos TX
29.83°N 97.94°W (Elev. 610 ft)
29.83°N 97.94°W (Elev. 610 ft)
3:01 am CDT Aug 19, 2019
3am CDT Aug 19, 2019-6pm CDT Aug 25, 2019
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
