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San Antonio, Texas Weather:
Thursday, September 18, 2025
Sunny with a Chance of ThunderstormsSunny weather with a possibility of isolated thunderstorms developing later in the day.
Day 90°
Night 66°

Weather Forecast History

Last Year's Weather on This Day (September 18, 2024)

Cloudy WeatherCloudy weather, overcast skies with clouds.

Day

97°

Night

77°

Wind

8 mph

UV Index

6

Precipitation

1