San Antonio, TX Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for San Antonio, TX in one place.
Sunny, with a high near 102. South wind 0 to 5 mph.
Local Weather Overview
This forecast page for San Antonio, TX is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 21, 2026 6:17 PM CDT.
The active forecast window currently covers Aug 23 to Aug 27, 2026 for San Antonio, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 23 to Aug 27, 2026
- Latest sync
- Aug 21, 2026 6:17 PM CDT
- Forecast office
- EWX
- Source
- NOAA / NWS
Daily Outlook
This Week in San Antonio
Sunday looks like the warmest upcoming period in San Antonio at 102 degrees F.
Sunday Night is the coolest period ahead with temperatures near 77 degrees F.
The strongest winds are forecast for Tuesday Night at about 5 to 15 mph SSE.
The forecast from Aug 23 through Aug 27 stays mostly dry.
Forecast Details
- Last updated
- Aug 21, 2026 6:17 PM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- EWX
- Radar station
- KEWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 77. South wind 5 to 10 mph, with gusts as high as 20 mph.
Sunny, with a high near 102. South wind around 5 mph.
Clear, with a low around 78. South southeast wind 5 to 10 mph.
Sunny, with a high near 102. South wind around 5 mph.
Clear, with a low around 78.
Sunny, with a high near 102.
Clear, with a low around 79.
Sunny, with a high near 101.
Mostly clear, with a low around 79.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Aug 23
|
Sunny
|
102°F |
0 to 5 mph
S
|
|
Sunday Night
Aug 23
|
Mostly Clear
|
77°F |
5 to 10 mph
S
|
|
Monday
Aug 24
|
Sunny
|
102°F |
5 mph
S
|
|
Monday Night
Aug 24
|
Clear
|
78°F |
5 to 10 mph
SSE
|
|
Tuesday
Aug 25
|
Sunny
|
102°F |
5 mph
S
|
|
Tuesday Night
Aug 25
|
Clear
|
78°F |
5 to 15 mph
SSE
|
|
Wednesday
Aug 26
|
Sunny
|
102°F |
5 mph
S
|
|
Wednesday Night
Aug 26
|
Clear
|
79°F |
5 to 10 mph
SSE
|
|
Thursday
Aug 27
|
Sunny
|
101°F |
5 mph
SSE
|
|
Thursday Night
Aug 27
|
Mostly Clear
|
79°F |
5 to 10 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around San Antonio.
