Extended Forecast (Copyright KSAT-12 2026 - All Rights Reserved)
FORECAST HIGHLIGHTS
TEENS & 20S THIS AM: Cold enough for a record low in SA
FEW SLICK SPOTS: Can’t rule out a few remaining slick spots on roads
ABOVE FREEZING LATER TODAY: Temps to reach the upper-30s
FORECAST
BITTER COLD START
Temperatures have slipped into the low-20s and teens around San Antonio. We’ve already tied a record low and may very well set the record low for the date (20°, 1897). While most well-driven roads have dried out, there still could be a few slick spots around town. Once the sun rises (7:26am), any remaining ice should melt. Around midday, temperatures are forecast to rise above 32°. At that point, San Antonio will have spent more than 40 hours below freezing. Sunshine will push temps into the upper-30s this afternoon.
Today's Forecast (Copyright KSAT-12 2026 - All Rights Reserved)
COLD AGAIN TONIGHT
Tonight, temperatures will crater under clear skies. A low of 20° is forecast in San Antonio, once again nearing a record.
Lows Tuesday morning (Copyright KSAT-12 2026 - All Rights Reserved)
MORE COLD FRONTS LATER THIS WEEK
While we will see a warm-up over the next few days, another front is poised to slide through on Friday. This will be followed by a reinforcing shot of cold air on Saturday. This go-round, we do not expect precipitation with these systems. However, more freezes lie ahead by the weekend.
Extended Forecast (Copyright KSAT-12 2026 - All Rights Reserved)
Daily Forecast
KSAT meteorologists keep you on top of the ever-changing South Texas weather.
Justin Horne is a meteorologist and reporter for KSAT 12 News. When severe weather rolls through, Justin will hop in the KSAT 12 Storm Chaser to safely bring you the latest weather conditions from across South Texas. On top of delivering an accurate forecast, Justin often reports on one of his favorite topics: Texas history.