San Marcos, TX Weather Forecast
Hays County, Texas
Live radar, warnings and storm tracking for San Marcos, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for San Marcos
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
San Marcos, TX at a glance
San Marcos is home to about 71,569 people in Hays County, across 39 square miles. It ranks 56th by population of 536 places in Texas with a forecast here. The nearest neighbour with its own forecast is Kyle, 9 miles away.
- County
- Hays County
- Population
- 71,569 2023 est.
- Land area
- 39 sq mi
- People per sq mi
- 1,841
- Forecast point
- 29.8724°N, 97.9360°W
How well can the network see San Marcos?
The nearest Doppler radar is KEWX (Austin/San Antonio, TX), to the SSW. Its lowest scan passes about 680 ft above San Marcos. That is about as close as US radar coverage gets: low-level rotation and gust fronts over San Marcos show up clearly. San Marcos is closer to its radar than 93% of US cities.
The closest weather station is KHYI (San Marcos Muni). Close enough that its readings are the conditions in town.
Forecasts near San Marcos
- Kyle, TX9 mi
- Wimberley, TX12 mi
- Lockhart, TX15 mi
- Buda, TX15 mi
- New Braunfels, TX16 mi
- Seguin, TX20 mi
- Luling, TX22 mi
- Dripping Springs, TX24 mi
Elsewhere in Texas
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