Humidity has settled across South Texas, a change driven by southerly winds funneling warm, moisture-laden air from the Gulf of Mexico. This weather pattern not only brings a muggy feel but also sets the stage for increased rain chances throughout the region. As residents prepare for their Wednesday, April 23, 2025, the forecast indicates two distinct opportunities for rain.
The first chance comes early in the morning, with a potential cluster of thunderstorms moving from West Texas into the San Antonio metro area. This could mean gusty winds and small hail for some areas, so commuters should consider allowing extra time for travel. Rain chances during this early window are around 50%, but the actual impact will depend on how the storms develop overnight.
As the morning progresses, from 8 a.m. to 1 p.m., the skies are expected to dry out, but humidity will remain high. Dew point temperatures are projected to rise near 70 degrees, making the air feel sticky. Air temperatures will be in the 70s, inching closer to 80 degrees by noon.
Later in the day, from 1 p.m. to 7 p.m., isolated pop-up thunderstorms are anticipated across South Texas. These storms are not expected to last long, typically under 30 minutes, with overall rain chances in the San Antonio area hovering around 30-40%. The temperatures will rise into the lower to mid-80s, but the humidity will make it feel several degrees warmer, pushing heat index values into the upper 80s.
Looking ahead to Thursday, April 24, 2025, South Texas is likely to experience more pop-up thunderstorms, maintaining a 30% chance of rain in the San Antonio area. Temperatures may climb to around 86 degrees, with heat index values potentially reaching 90 degrees.
By Friday, April 25, storm chances will begin to decrease, though a 20% chance of a quick, isolated thunderstorm will linger. Temperatures are expected to peak in the upper 80s to near 90 degrees, with overnight lows settling in the low 70s.
The weekend of April 26-27, 2025, is forecasted to bring drier conditions as high atmospheric pressure builds over the southern United States. Temperatures are likely to rise a few more degrees, reaching into the low 90s.
Despite the rain chances, the overall rainfall totals across Central and South Texas are expected to remain low, with many areas receiving less than a half-inch of rain. According to the National Blend of Models, this trend is likely to continue through the end of the week.
As for the immediate impact of the weather, heavy rain was reported to shift out soon on Wednesday morning, but lingering effects are expected during the morning commute in San Antonio. Residents are advised to remain cautious as they navigate the wet roads.
In summary, Wednesday's weather in South Texas will be marked by humidity and the potential for thunderstorms, particularly in the morning and early evening. The forecast calls for a mix of rain and dry spells, with temperatures gradually warming as the week progresses.
