Hearts, Hail, and High Humidity: A Stormy Valentine’s Day Forecast for San Antonio

A Gray Start to the Holiday

San Antonio residents waking up this Saturday morning, February 14, 2026, should prepare for a damp and overcast start to Valentine’s Day. According to the latest data from the National Weather Service, a Pacific cold front is moving into South-Central Texas, bringing a surge of moisture and high humidity levels peaking near 88%. The early morning hours will be defined by substantial cloud cover and a persistent light drizzle or mist. Temperatures are starting off unseasonably mild in the low 60s, providing a warm but soggy backdrop for early morning flower deliveries and breakfast plans.

Afternoon and Evening: The Storm Window Opens

While the morning will be relatively calm with off-and-on showers, the weather is expected to take a more aggressive turn as we move into the afternoon. Forecasters indicate that the primary Pacific front will swing through the San Antonio metro area between 3:00 p.m. and 7:00 p.m. During this window, scattered showers will transition into more organized lines of thunderstorms. The high temperature today is expected to reach the upper 70s, potentially touching 79°F, which is roughly ten degrees above the February average. This heat, combined with the incoming front, will provide the energy needed for stronger storm development.

Severe Weather Alerts and Risks

The National Weather Service has placed the Alamo City under a Level 1 out of 5 (Marginal) risk for severe weather. The most vulnerable period for San Antonio is currently projected to be from 5:00 p.m. to 9:00 p.m. Residents with outdoor dinner reservations or evening events should be aware of the following potential threats:

• Damaging Winds: Gusts between 55 and 65 mph are possible as the front moves through.
• Large Hail: Isolated instances of hail could accompany the strongest cells in the line.
• Frequent Lightning: Storms will likely be accompanied by significant electrical activity.
• Rainfall Totals: Most areas are expected to receive up to half an inch of rain, though some spots north of the city could see higher totals.

Looking Ahead: A Cold Front Recovery

As the front passes through late tonight, the winds will shift to the west and eventually the north-northwest. The mercury will drop significantly overnight, reaching a low of approximately 48°F by early Sunday morning. The good news for those whose Saturday plans are dampened is that Sunday promises a complete weather turnaround. Skies are expected to clear rapidly overnight, leading to a sunny, mild, and dry Sunday with highs in the mid-70s, offering a perfect opportunity for any rescheduled outdoor activities.