Local Forecast

San Marcos, TX Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for San Marcos, TX.

No Active Alerts

Hour-by-Hour  Current Observation

Monday 9:25 AM CDTMonday 9:25 AM

°F °C
Regional Observations →
82°F

Cloudy

  • 98° / 75° High / Low
  • 88° Feels Like
  • 0% Chance of Rain

Wind

0 mph

N

UV Index

7

High

Humidity

74%

Dew 73°F

Sun

6:33 AM · 8:36 PM

Rise · Set

Source: NEW BRAUNFELS (KBAZ). Slider scrubs the next 12 hours.

5-Day Outlook

Through Friday

Local Radar →

Today

98° 75°

Mostly Cloudy

Overnight: Mostly Cloudy

Detailed forecast

Today

Haze after 1pm. Sunny, with a high near 96. Heat index values as high as 100. South wind 10 to 15 mph, with gusts as high as 30 mph.

Night

Haze before 7pm. Partly cloudy, with a low around 74. South southeast wind 5 to 15 mph, with gusts as high as 30 mph.

Tuesday

95° 77°

Mostly Cloudy

Overnight: Partly Cloudy

Detailed forecast

Tuesday

Mostly sunny, with a high near 94. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

Night

Partly cloudy, with a low around 74. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

Wednesday

95° 75°

Partly Sunny

Overnight: Mostly Clear

Detailed forecast

Wednesday

Mostly sunny, with a high near 94. South southeast wind 5 to 10 mph.

Night

Mostly clear, with a low around 74. South southeast wind 0 to 15 mph.

Thursday

95° 75°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Thursday

Sunny, with a high near 94. South wind 0 to 10 mph.

Night

Partly cloudy, with a low around 74. South southeast wind 0 to 10 mph.

Friday

96° 75°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Friday

Mostly sunny, with a high near 95.

Night

Mostly clear, with a low around 74.

San Marcos, TX Weather Analysis Tools