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2023 Rock ‘n’ Roll running forecast in San Antonio

Chilly mornings lead in mild, warmer than average afternoons both Saturday and Sunday

Chilly mornings followed by mild afternoons are in store this weekend with low humidity.

With the Rock ‘n’ Roll Marathon taking place this weekend, thousands of runners will be headed to the Alamo City to take part in the races.

Good news for those participating or cheering on runners: the weather looks nice and quiet!

KEY POINTS

  • A quiet weather pattern takes over for the first weekend of December
  • Chilly mornings in the upper 40s and low 50s are in store Saturday and Sunday
  • Mild, but slightly warmer-than-average afternoons are in the forecast with highs in the mid-70s
  • Humidity will be low
  • Winds will be light at 5-10 mph

A full breakdown of the forecast for both Saturday and Sunday can be found below:


SATURDAY (12/2): 5k and 10k

  • Morning: Chilly for the start of the races with temperatures in the upper 40s and low 50s
  • Midday: Warming, with temperatures in the upper 60s, approaching 70°
  • Afternoon: Mild and warmer than average, with highs topping off in the mid-70s under partly cloudy skies
  • Northwest winds at 5-10 mph
  • Low humidity
A chilly morning leads in a mild, slightly warmer than average afternoon

SUNDAY (12/3): half-marathon and marathon

  • Morning: Chilly for the start of the races with temperatures in the 40s
  • Midday: Turning warm for runners, with temperatures approaching 70°
  • Afternoon: Warmer than average again with highs topping off in the mid 70s under partly cloudy skies
  • Northwest winds turning southwest at 5-10 mph
  • Low humidity
A chilly morning leads in a mild, slightly warmer than average afternoon

START TIMES

The start times for the 5K and 10K are at 7:30 a.m. on Dec. 2.

The start times for the half-marathon and marathon are 7 a.m. on Dec. 3.

For more details on race routes and courses, you can visit the link on our website here.

Click here for street closures, free parking and more to know about the Rock ‘n’ Roll running weekend in San Antonio.



About the Author
Mia Montgomery headshot

Meteorologist Mia Montgomery joined the KSAT Weather Authority Team in September 2022. As a Floresville native, Mia grew up in the San Antonio area and always knew that she wanted to return home. She previously worked as a meteorologist at KBTX in Bryan-College Station and is a fourth-generation Aggie.

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