Crisp Skies and Blustery Winds: Cold Front to Chill the Alamo City Tonight

Wednesday Overview: A Tale of Two Temperatures

San Antonio residents should prepare for significant shifts in conditions today, Wednesday, February 4, 2026. While the morning starts with the familiar mildness of a South Texas winter, a reinforcing cold front is set to sweep through the region by the afternoon, bringing blustery winds and a sharp decline in mercury levels once the sun goes down. The transition will be noticeable, moving from a comfortable afternoon to a night that will require heavy layers and extra precautions for those sensitive to the cold.

Morning and Afternoon: Mild and Bright

The morning hours will feature mostly sunny skies with temperatures beginning in the mid-50s around sunrise. As the city moves into the afternoon, the high is expected to reach approximately 66 degrees Fahrenheit. This temperature is well within the seasonal average for early February, offering a pleasant window for outdoor activities and errands. However, the atmosphere will feel increasingly active as northerly winds begin to pick up speed. By midday, residents can expect sustained northerly winds of 10 to 20 mph, signaling the arrival of the boundary layer associated with the incoming front.

The Evening Plummet: Bracing for the Chill

The primary weather story for today occurs after sunset. National weather models and local reports indicate that temperatures will plummet rapidly tonight. Forecasts suggest a low ranging between 37 and 42 degrees Fahrenheit across the city, with some outlying Hill Country areas potentially dipping closer to the freezing mark. This cold snap is a stark contrast to the mid-60s seen during the day, making heavy coats a necessity for anyone planning to be out late Wednesday night or early Thursday morning.

Wind Alerts and Precipitation Outlook

While the front is expected to be relatively dry for the immediate San Antonio area, there are key details to keep in mind regarding wind and moisture:

• Wind Gusts: Northerly gusts are predicted to reach as high as 35 mph. These gusts will significantly lower the "feels like" temperature, or wind chill, making the evening air feel much sharper than the actual thermometer reading.
• Rain Probability: Most reliable weather models place the chance of rain at a slim 5% for the metro area. While some patchy moisture or a stray shower cannot be entirely ruled out—particularly to the east of the city—significant accumulations are not expected today.
• Sky Conditions: Skies will remain mostly clear throughout the night. This lack of cloud cover will facilitate radiational cooling, allowing heat to escape the atmosphere quickly and contributing to the brisk overnight lows.

Looking ahead, this cold front marks the start of a seasonably cool stretch for the middle of the week. While Thursday will remain chilly, a gradual warming trend is forecasted to return temperatures to the 70s by the upcoming weekend. For today, the advice from the weather desk is to enjoy the afternoon sun, but ensure your winter gear is easily accessible before the evening commute.