Cold front to bring blast of much colder air by Wednesday

A small window for a light wintry mix late Wednesday night exists -- especially in the Hill Country

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January may have been warmer than average, but it doesn’t mean; we’re done with winter just yet.

A cold front is forecast to arrive to South Texas late Tuesday night into early Wednesday morning. Unlike previous fronts this winter, this one will have significant impact on temperatures. However, the cold air should only stick around for a short time.

First things first: A chance of rain does show up on Monday. In fact, a few rumbles of thunder are also possible. Rain chances sit at about 30 percent.

Look for a slight chance of rain today, with quite a bit of cloud cover.

Tuesday is likely our warmest day, with partly cloudy skies. Then, get ready for an abrupt change.

By Wednesday, temperatures are falling into the 40s in most spots in South Texas. Gusty winds will also arrive with the front, which means wind chills could dip into the 20s and 30s. There’s a decent chance for showers as the front moves through, but by Wednesday afternoon, most of us will just be looking at cloudy and cold conditions.

Strong cold front arrives Tuesday night into Wednesday morning.

From there, the forecast gets a bit more tricky.

Late Wednesday night, the last bit of upper energy moves through, which may generate some light precipitation. While temperatures will likely stay above freezing in San Antonio, a few spots in the Hill Country could see a light wintry mix. A few snowflakes could mix in with the rainfall. No accumulation is expected at this time and it appears impacts will be minimal.

A small window for a light wintry mix exists late Wednesday night into early Thursday morning, mainly across the Hill Country.

This will be a short-lived cool-down, as temperatures rebound quickly on Thursday. By next weekend, we’re back into the 70s!

Expect a roller coaster ride this week, with big swings in temperature.

The KSAT Weather Team will be keeping a very close eye on the possibility of a wintry mix, so keep checking and the updated KSAT Weather App for the latest forecast. For now, check out the latest forecast video below:

Justin's AM Update: February 3, 2020
Justin's AM Update: February 3, 2020

About the Authors:

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.

Sarah Spivey is a San Antonio native who grew up watching KSAT long before she began to think about a career in television.