Spring Sizzle: San Antonio Greets March with Record-Challenging Warmth

A Bright and Balmy Start to the Month

San Antonio is kicking off the month of March with unseasonably warm conditions that feel more like May than early spring. Following the warmest February in the city’s recorded history, Sunday, March 1, 2026, continues the trend of high-pressure dominance across Central Texas. Residents can expect a day defined by significant temperature swings and plenty of afternoon sunshine, making it an ideal day for outdoor activities, provided you are prepared for the heat.

Morning: Gray Skies and Mild Starts

The day began with a blanket of overcast skies across the Alamo City. Between 5:00 a.m. and 9:00 a.m., temperatures hovered comfortably in the low to mid-60s. While the clouds may have seemed persistent during the early commute or morning jog, they are strictly a temporary fixture. As the morning progresses toward 11:00 a.m., the thermometer is expected to climb steadily into the low 70s as the cloud cover begins to break apart, yielding to the Texas sun.

Afternoon: Peak Heat and Clear Horizons

By midday, the overcast conditions will give way to mostly sunny skies. San Antonio is forecasted to reach a high of approximately 83°F this afternoon. This temperature is nearly 13 degrees above the seasonal average for the first day of March. The combination of low humidity and direct sunlight will make the afternoon feel particularly intense. For those heading to local parks or the River Walk, light clothing and hydration are highly recommended. Fortunately, the winds remain relatively calm today, primarily originating from the south at a gentle pace, offering only a slight breeze to cut through the afternoon warmth.

Evening and Night: The Return of the Clouds

As the sun sets around 6:33 p.m., the city will see a return of cloud cover. Evening temperatures will dip back into the high 60s, eventually settling at a low of 64°F overnight. While the daytime remains dry, there is a slight 20% chance of light rain or isolated drizzles late tonight and into the early hours of Monday morning. These scattered showers are not expected to bring significant accumulation but may result in damp windshields for early Monday travelers.

Warnings and Outlook

• Wind & Rain: There are currently no active watches, warnings, or advisories for the San Antonio area. South winds will remain mild today, though they are expected to strengthen to 20 mph by Tuesday.
• UV Index: The UV index is expected to reach a 'Very High' level (8) during peak sunlight hours. Protection is vital for those outdoors for extended periods.
• Extended Forecast: While today is dry, rain chances are predicted to increase significantly by mid-week, with a 40-50% chance of thunderstorms expected by Wednesday.