Local Forecast

San Marcos, TX Weather Forecast & Alerts

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

Active Alerts 1 active

Hour-by-Hour  Current Observation

Wednesday 5:30 AM CDTWednesday 5:30 AM

°F °C
Regional Observations →
75°F

Clear

  • 102° / 82° High / Low
  • 75° Feels Like
  • 0% Chance of Rain

Wind

0 mph

N

UV Index

0

None

Humidity

89%

Dew 71°F

Sun

6:44 AM · 8:30 PM

Rise · Set

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

5-Day Outlook

Through Sunday

Local Radar →

Wednesday

102° 82°

Partly Sunny

Overnight: Mostly Cloudy

Detailed forecast

Wednesday

Sunny, with a high near 101. Heat index values as high as 109. North northwest wind 0 to 5 mph.

Night

Mostly clear, with a low around 82. Heat index values as high as 108. Northeast wind 0 to 5 mph.

Thursday

100° 80°

Mostly Sunny

Overnight: Partly Cloudy

Detailed forecast

Thursday

Sunny, with a high near 99. Heat index values as high as 107. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

Night

Partly cloudy, with a low around 79. East southeast wind 5 to 10 mph, with gusts as high as 20 mph.

Friday

96° 77°

Partly Sunny

Overnight: Mostly Clear

Detailed forecast

Friday

Mostly sunny, with a high near 96. South wind 5 to 10 mph.

Night

Mostly clear, with a low around 77. South wind 5 to 15 mph, with gusts as high as 25 mph.

Saturday

96° 75°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Saturday

Sunny, with a high near 96. South wind 5 to 10 mph.

Night

Mostly clear, with a low around 75. South wind 5 to 10 mph, with gusts as high as 20 mph.

Sunday

96° 75°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Sunday

Sunny, with a high near 96.

Night

Mostly clear, with a low around 75.

San Marcos, TX Weather Analysis Tools