Sun and Steam: San Antonio’s Unseasonably Warm Monday Forecast

Morning: A Humid and Breezy Start

Residents of the Alamo City are waking up to a thick layer of clouds and a notably humid atmosphere this Monday morning, March 2, 2026. As of the early morning hours, temperatures are hovering around 67°F, which is exceptionally mild for the start of March. Humidity levels are sitting high at approximately 85%, creating a damp, heavy feel to the air even without significant precipitation. Morning commuters should expect overcast skies and breezy conditions, with southerly winds beginning to pick up as the city enters the first work week of meteorological spring.

Afternoon: Peaking Temperatures and Sunny Spells

As the day progresses, the thick cloud cover is expected to thin out, allowing for sunny intervals to break through by early afternoon. However, the primary headline for today is the unseasonable warmth. San Antonio is projected to reach a high temperature between 84°F and 85°F, which is significantly above the historical average for this time of year. These temperatures may feel even warmer due to the lingering humidity, with heat indices potentially reaching the upper 80s. Residents planning outdoor activities should stay hydrated and be prepared for gusty conditions. Southerly winds will persist throughout the afternoon, with steady speeds around 11 to 15 mph and occasional gusts reaching as high as 30 mph.

Evening: Cooling Down with a Slight Rain Chance

The evening will see a return of thicker cloud cover as moisture continues to stream in from the Gulf of Mexico. Temperatures will slowly descend into the mid-60s, with an expected overnight low of approximately 66°F. While the majority of the day remains dry, there is a slight 20% chance of light rain or isolated drizzle developing after sunset and into the overnight hours. This moisture is part of a larger trend that forecasters are monitoring as a low-pressure system develops over the Central Plains, which could lead to more significant thunderstorm potential by Wednesday.

Regional Context and Daily Summary

While today’s warmth provides a spring-like atmosphere, local meteorologists at the San Antonio International Airport note that the region remains in a significant rainfall deficit. As of March 1, the city has received only 1.46 inches of rain this year, roughly 39% of its typical volume. Highlights of today's forecast include:

• Expected High: 85°F
• Expected Low: 66°F
• Wind: South winds at 15 mph with gusts up to 30 mph.
• Precipitation: 20% chance of light rain, primarily late tonight.
• Weather Alerts: No active warnings or advisories are currently in effect, though residents are encouraged to secure lightweight outdoor items due to breezy conditions.

Stay tuned for further updates as we continue to track the unseasonably warm start to the month and the potential for changing conditions later this week.