Sunday Brings Heat Relief For Some; Flash Flood Threat Along Cold Front

A cold front shifting across the Central Plains, Midwest, Great Lakes and Northeast on Sunday will bring some relief from the heat with cooler and drier air. Excessive heat holds Sunday roughly south of I-70. Heavy rain from thunderstorms along the front may bring flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Mostly Cloudy

78°F

26°C

Humidity 76%
Wind Speed SE 9 mph
Barometer 29.97 in (1012.7 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 21 Jul 12:51 am CDT
Extended Forecast for

San Antonio TX

  • Overnight

    Overnight: Mostly cloudy, with a low around 76. South southeast wind 5 to 10 mph.

    Mostly Cloudy

    Low: 76 °F

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 99. Heat index values as high as 102. South southeast wind 5 to 10 mph.

    Hot

    High: 99 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 76. South southeast wind 5 to 15 mph.

    Partly Cloudy

    Low: 76 °F

  • Monday

    Monday: Mostly sunny, with a high near 98. Heat index values as high as 101. South southeast wind 5 to 10 mph.

    Mostly Sunny

    High: 98 °F

  • Monday
    Night

    Monday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 77. East southeast wind 5 to 10 mph becoming west southwest after midnight.

    Slight Chance
    T-storms

    Low: 77 °F

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 91. North northeast wind 5 to 10 mph.

    Chance
    T-storms

    High: 91 °F

  • Tuesday
    Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 73. Northeast wind 5 to 10 mph.

    Chance
    T-storms

    Low: 73 °F

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 90. Northeast wind 5 to 10 mph.

    Slight Chance
    T-storms

    High: 90 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 70. Northeast wind 5 to 10 mph.

    Mostly Clear

    Low: 70 °F

Detailed Forecast

Overnight
Mostly cloudy, with a low around 76. South southeast wind 5 to 10 mph.
Sunday
Mostly sunny and hot, with a high near 99. Heat index values as high as 102. South southeast wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 76. South southeast wind 5 to 15 mph.
Monday
Mostly sunny, with a high near 98. Heat index values as high as 101. South southeast wind 5 to 10 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. East southeast wind 5 to 10 mph becoming west southwest after midnight.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 91. North northeast wind 5 to 10 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Northeast wind 5 to 10 mph.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Northeast wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 70. Northeast wind 5 to 10 mph.
Thursday
Sunny, with a high near 93.
Thursday Night
Mostly clear, with a low around 70.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Friday Night
Partly cloudy, with a low around 74.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 94.
Click Map For Forecast
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
11:42 pm CDT Jul 20, 2019
1am CDT Jul 21, 2019-6pm CDT Jul 27, 2019
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database