San Antonio Airport (SAT) Weather 06/23/2026
This Afternoon
93
Sunny
Tonight
78
Increasing Clouds
Thursday
97
Decreasing Clouds
Thursday Night
79
Increasing Clouds
Juneteenth
94
Mostly Cloudy then Slight Chance T-storms
Friday Night
77
Chance T-storms
Saturday
91
Chance T-storms
Saturday Night
77
Chance T-storms
Sunday
94
Mostly Sunny
Sunday Night
77
Partly Cloudy
Monday
95
Mostly Sunny
Monday Night
77
Partly Cloudy
Tuesday
95
Mostly Sunny
Weekly Forecast
This Afternoon
Sunny, with a high near 93. Heat index values as high as 105. East wind around 5 mph becoming south.
Tonight
Increasing clouds, with a low around 78. South wind 5 to 10 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 97. Heat index values as high as 111. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Increasing clouds, with a low around 79. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Juneteenth
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 94. Southeast wind 5 to 10 mph.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. East southeast wind 5 to 10 mph.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. South southeast wind 5 to 10 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Southeast wind around 10 mph.
Sunday
Mostly sunny, with a high near 94. South wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 77.
Monday
Mostly sunny, with a high near 95.
Monday Night
Partly cloudy, with a low around 77.
Tuesday
Mostly sunny, with a high near 95.