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San Marcos, Texas Weather

San Marcos, Texas — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery for San Marcos, Hays County.

🌡️ Current Conditions
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24-Hour Forecast
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Current Conditions Detail
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7-Day Forecast
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✈️ Aviation Weather

Flight conditions near San Marcos — sourced from the FAA Aviation Weather Center. Nearest reporting station: locating…

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🌿 Air Quality
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NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for San Marcos and surroundings — RainViewer.

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🛰️ Satellite Imagery

NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.

NOAA GOES-16 CONUS GEOCOLOR satellite animated loop
🛰️ GEOCOLOR loop 🌡️ Infrared (IR) 🌀 NHC Hurricane Satellite 🔗 NOAA Full Viewer

Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload

🌙 Astronomy
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About San Marcos, Texas

San Marcos, Texas, unfolds in a landscape of gentle hills that cradle the San Marcos River, a ribbon of clear, cool water that defines the very spirit of the place. It lies 8.3 miles south-south-west of Kyle, TX (from Kyle, TX: bearing 208°T), and is situated 5.4 miles north-north-west of Redwood. The sun here has a particular quality, a slow descent that bleeds amber and rose across the scrubby oaks and mesquite trees dotting the terrain, casting long, soft shadows that seem to whisper of forgotten afternoons. The air, especially in the late spring, carries the faint, sweet scent of wildflowers and the humid promise of summer storms, a constant, subtle reminder of the earth’s enduring pulse. This is a place where the horizon feels close, yet expansive, a deceptive invitation to both intimacy and adventure. The history of San Marcos is deeply entwined with the San Marcos River, a vital artery for indigenous peoples long before settlers arrived. The founding of the city, spurred by its strategic location and the abundant water, eventually saw it grow into a hub for education and commerce. Texas State University now stands as a prominent landmark, its presence infusing the town with a youthful energy that contrasts with the enduring quiet of its historic downtown buildings. The local economy, once rooted in agriculture and manufacturing, now thrives on a blend of education, tourism drawn to the river's natural beauty and the unique shops and eateries, and a burgeoning tech presence, all contributing to a distinctive, unhurried rhythm of life.

LocationSan Marcos, Hays County, Texas
Coordinates29.883275°N, 97.941394°W
TimezoneCentral Time (America/Chicago)
ZIP Code(s)78666, 78667
Area Code512, 737
Page generatedJune 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service