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Current conditions at
San Antonio, San Antonio International Airport (KSAT)
Lat: 29.53°NLon: 98.46°WElev: 807ft.
Partly Cloudy
99°F
37°C
| Humidity | 33% |
| Wind Speed | SE 12 mph |
| Barometer | 29.81 in (1007.3 mb) |
| Dewpoint | 65°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 102°F (39°C) |
| Last update | 3 Sep 5:51 pm CDT |
Extended Forecast for
San Antonio TX
Tonight
Low: 79 °F
Chance
Showers then
Partly CloudyFriday
High: 96 °F
Partly Sunny
then Slight
Chance
ShowersFriday Night

Low: 77 °F
Partly Cloudy
Saturday

High: 96 °F
Chance
T-stormsSaturday Night

Low: 77 °F
Partly Cloudy
Sunday

High: 97 °F
Sunny
Sunday Night

Low: 78 °F
Mostly Clear
Labor Day

High: 97 °F
Sunny
Monday Night

Low: 77 °F
Mostly Clear
Detailed Forecast
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 79. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
A 20 percent chance of showers after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 96. Heat index values as high as 103. Southeast wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 77. Southeast wind 5 to 10 mph.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 96. Heat index values as high as 104. East southeast wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 77. East southeast wind 5 to 10 mph becoming light south southeast after midnight.
Sunday
Sunny, with a high near 97. Calm wind becoming east southeast around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 78. East southeast wind 5 to 10 mph becoming light south after midnight.
Labor Day
Sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 77. Southeast wind 5 to 10 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 97.
Tuesday Night
Partly cloudy, with a low around 76.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 76.
Thursday
Mostly sunny, with a high near 96.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
San Antonio TX
29.46°N 98.5°W (Elev. 741 ft)
29.46°N 98.5°W (Elev. 741 ft)
5:46 pm CDT Sep 3, 2026
6pm CDT Sep 3, 2026-6pm CDT Sep 10, 2026


