Remnants of Arthur and Heavy Rainfall Across the South; Severe Weather for the East

Potential life threatening flash flooding across the northern Gulf Coast states as the remnants of Arthur track across the area. Remember, turn around - don't drown. In addition, severe thunderstorms with tornadoes are possible with the circulation of this storm. The threat for more severe thunderstorms will occur across portions of the Northeast, mid-Atlantic and central Appalachian's. Read More >

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Partly Cloudy

94°F

34°C

Humidity 60%
Wind Speed SE 13 mph
Barometer 29.67 in (1002.6 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index110°F (43°C)
Last update 18 Jun 6:51 pm CDT
Extended Forecast for

Alamo Heights TX

Extreme Heat Warning June 18, 07:51pm until June 18, 09:00pm
Click here for hazard details and duration
...
  •  
    Extreme Heat Warning June 18, 07:51pm until June 18, 09:00pm

    NOW until 9:00pm Thu

    Extreme Heat Warning

  • Tonight

    Low: 79 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 93. Heat index values as high as 105. East wind 5 to 10 mph.

    High: 93 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 77. East southeast wind 5 to 10 mph.

    Low: 77 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly after 1pm.  Partly sunny, with a high near 91. Heat index values as high as 101. South southeast wind 5 to 10 mph.

    High: 91 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 76. South southeast wind around 10 mph.

    Low: 76 °F

    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 93. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. South southeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 96. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 96 °F

    Mostly Sunny

Detailed Forecast

Tonight
Increasing clouds, with a low around 79. Southeast wind around 10 mph.
Juneteenth
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 93. Heat index values as high as 105. East wind 5 to 10 mph.
Friday Night
A 40 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, mainly after 1pm. Partly sunny, with a high near 91. Heat index values as high as 101. South southeast wind 5 to 10 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. South southeast wind around 10 mph.
Sunday
Mostly sunny, with a high near 93. South wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 77. South southeast wind around 15 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 96. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 77. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Mostly sunny, with a high near 96.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Mostly sunny, with a high near 95.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Alamo Heights TX
 29.48°N 98.45°W (Elev. 797 ft)
7:34 pm CDT Jun 18, 2026
7pm CDT Jun 18, 2026-6pm CDT Jun 25, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database