We’ll go from 90°+ afternoons to mornings in the 50s by the weekend

Posted Monday, October 12, 2026 7:53 pm

Sarah Spivey, Justin Horne, Adam Caskey (via KSAT San Antonio)

FORECAST HIGHLIGHTS

HUMID: Sticky & hot through Wednesday, heat index near 100°
STRAY SHOWER/STORM: 10% chance almost daily
FRONT: Fall-like front to sweep through by Friday
WEEKEND: Mornings in the 50s, afternoons in the 70s

FORECAST

HUMIDITY IS BACK

The humidity is back and is combining with temperatures in the lower 90s to give us feels like/heat index temperatures of 95°-100°, and that’ll remain the case through Wednesday.

A LATE WEEK FRONT

Here’s the good news! A cold front is scheduled to arrive Friday morning. While the front won’t have good moisture to work with in San Antonio, heavy rainfall will be possible along the Rio Grande as the front sweeps through, but San Antonio’s rain chances are only 10%.

Rain in San Antonio will be sparse, but heavy rain is possible nearer to the Rio Grande

The bigger story will be gusty winds and a nice drop in temperatures. Winds could gust up to 35 to 40 mph Friday through Saturday, so secure outdoor Halloween decorations.