Current Conditions

San Marcos, San Marcos

58°F14°C
Showers

Wind

ENE 4 mph6 km/h

Humidity

88%

Cloud Cover

34%

As of Thursday, August 13, 2026 at 5:25 AM CST

Today's Outlook

Day

Partly cloudy and warm, with a high of 75°F24°C and morning low of 58°F14°C. Light wind from the SE around 3 mph4 km/h. 91% chance of showers around midday.

Night

Partly cloudy, with a low around 59°F15°C. Light wind from the NE around 3 mph4 km/h. 65% chance of showers overnight.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ShowersHigh 75°F24°CLow 58°F14°CPrecip 0.11 in2.9 mm91%Cloud 43%Wind ENE 3 mph4 km/hThursday: Partly cloudy and warm, with a high of 75°F24°C and morning low of 58°F14°C. Light wind from the SE around 3 mph4 km/h. 91% chance of showers around midday. Thursday Night: Partly cloudy, with a low around 59°F15°C. Light wind from the NE around 3 mph4 km/h. 65% chance of showers overnight.
ShowersHigh 75°F24°CLow 57°F14°CPrecip 0.09 in2.4 mm83%Cloud 46%Wind ENE 3 mph5 km/hFriday: Partly cloudy and warm, with a high of 75°F24°C and morning low of 57°F14°C. Light wind from the E around 3 mph5 km/h. 83% chance of showers around midday. Friday Night: Partly cloudy, with a low around 59°F15°C. Light wind from the NE around 3 mph5 km/h. 73% chance of showers in the evening.
RainHigh 74°F23°CLow 59°F15°CPrecip 0.26 in6.6 mm97%Cloud 64%Wind ENE 3 mph5 km/hSaturday: Mostly cloudy and warm, with a high of 74°F23°C and morning low of 59°F15°C. Light wind from the ENE around 3 mph5 km/h. 97% chance of rain around midday. Saturday Night: Mostly cloudy, with a low around 61°F16°C. Light wind from the NE around 3 mph5 km/h. 88% chance of light rain throughout the night.
Light RainHigh 73°F23°CLow 59°F15°CPrecip 0.09 in2.2 mm56%Cloud 73%Wind ENE 4 mph6 km/hSunday: Mostly cloudy and warm, with a high of 73°F23°C and morning low of 59°F15°C. Light wind from the ENE around 4 mph6 km/h. 56% chance of showers around midday. Sunday Night: Mostly cloudy, with a low around 59°F15°C. Light wind from the NE around 3 mph5 km/h. 46% chance of light rain throughout the night.
DrizzleHigh 73°F23°CLow 57°F14°CPrecip 0.04 in1 mm44%Cloud 83%Wind ENE 3 mph5 km/hMonday: Overcast and warm, with a high of 73°F23°C and morning low of 57°F14°C. Light wind from the ENE around 3 mph5 km/h. 44% chance of drizzle in the afternoon. Monday Night: Mostly cloudy, with a low around 58°F14°C. Light wind from the NE around 3 mph5 km/h. 37% chance of drizzle in the evening.
Light RainHigh 72°F22°CLow 58°F15°CPrecip 0.26 in6.6 mm97%Cloud 70%Wind ENE 3 mph5 km/hTuesday: Mostly cloudy and warm, with a high of 72°F22°C and morning low of 58°F15°C. Light wind from the ENE around 3 mph5 km/h. 97% chance of showers around midday. Tuesday Night: Mostly cloudy, with a low around 59°F15°C. Light wind from the NE around 3 mph5 km/h. 86% chance of light rain in the evening.
RainHigh 72°F22°CLow 60°F16°CPrecip 0.41 in10.4 mm89%Cloud 87%Wind ENE 3 mph5 km/hWednesday: Overcast and warm, with a high of 72°F22°C and morning low of 60°F16°C. Light wind from the ENE around 4 mph6 km/h. 89% chance of rain throughout the day. Wednesday Night: Overcast, with a low around 60°F16°C. Light wind from the NE around 3 mph5 km/h. 81% chance of rain throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdayAug 1375°F24°C58°F14°C0.11 in2.9 mm· 91%43%ShowersENE 3 mph4 km/h
FridayAug 1475°F24°C57°F14°C0.09 in2.4 mm· 83%46%ShowersENE 3 mph5 km/h
SaturdayAug 1574°F23°C59°F15°C0.26 in6.6 mm· 97%64%RainENE 3 mph5 km/h
SundayAug 1673°F23°C59°F15°C0.09 in2.2 mm· 56%73%Light RainENE 4 mph6 km/h
MondayAug 1773°F23°C57°F14°C0.04 in1 mm· 44%83%DrizzleENE 3 mph5 km/h
TuesdayAug 1872°F22°C58°F15°C0.26 in6.6 mm· 97%70%Light RainENE 3 mph5 km/h
WednesdayAug 1972°F22°C60°F16°C0.41 in10.4 mm· 89%87%RainENE 3 mph5 km/h
ThursdayAug 2072°F22°C60°F15°C0.33 in8.4 mm· 82%79%RainENE 3 mph6 km/h
FridayAug 2172°F22°C59°F15°C0.39 in10 mm· 85%77%RainENE 3 mph5 km/h
SaturdayAug 2272°F22°C59°F15°C0.43 in11 mm· 95%82%RainENE 3 mph5 km/h
SundayAug 2373°F23°C59°F15°C0.41 in10.3 mm· 96%85%RainENE 3 mph5 km/h
MondayAug 2473°F23°C58°F15°C0.29 in7.4 mm· 93%81%RainENE 3 mph5 km/h
TuesdayAug 2573°F23°C59°F15°C0.27 in6.8 mm· 93%79%RainENE 3 mph5 km/h
WednesdayAug 2673°F23°C59°F15°C0.26 in6.7 mm· 93%78%RainENE 3 mph5 km/h
ThursdayAug 2773°F23°C59°F15°C0.31 in7.9 mm· 93%81%RainENE 3 mph5 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 14.9644°N, 91.7949°W·Elevation: 2380m·Timezone: America/Guatemala·Population: 47,063