Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Heavy Rain Expected in the Northeast; Strong Thunderstorms Possible in Texas

A slow-moving low pressure center will shift into the Northeast today, bringing heavy rain to some areas, especially coastal Maine. The rain combined with snowmelt has increased the threat for flooding in parts of New England. At the southern end of the front, isolated strong-to-severe thunderstorms are possible in the Rio Grande Valley in Texas today. 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

83°F

28°C

Humidity 36%
Wind Speed Vrbl 7 mph
Barometer 30.02 in (1014.8 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 25 Apr 1:51 pm CDT
Extended Forecast for

San Antonio TX

  • This
    Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Some of the storms could be severe.  Cloudy, with a high near 80. East southeast wind 5 to 10 mph becoming north.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Severe
    Thunderstorms

    High: 80 °F

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms.  Cloudy, with a low around 56. North wind 5 to 10 mph.

    Chance
    T-storms

    Low: 56 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 79. North wind around 5 mph becoming east southeast in the afternoon.

    Mostly Sunny

    High: 79 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 58. Southeast wind around 5 mph becoming north after midnight.

    Partly Cloudy

    Low: 58 °F

  • Friday

    Friday: Mostly sunny, with a high near 79. North northeast wind 5 to 10 mph.

    Mostly Sunny

    High: 79 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 56. East northeast wind 5 to 10 mph.

    Partly Cloudy

    Low: 56 °F

  • Saturday

    Saturday: Partly sunny, with a high near 79. East northeast wind 5 to 10 mph becoming southeast in the afternoon.

    Partly Sunny

    High: 79 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 59. South southeast wind 5 to 10 mph.

    Mostly Cloudy

    Low: 59 °F

  • Sunday

    Sunday: Partly sunny, with a high near 81. South southeast wind 5 to 10 mph.

    Partly Sunny

    High: 81 °F

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Some of the storms could be severe. Cloudy, with a high near 80. East southeast wind 5 to 10 mph becoming north. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers and thunderstorms. Cloudy, with a low around 56. North wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 79. North wind around 5 mph becoming east southeast in the afternoon.
Thursday Night
Partly cloudy, with a low around 58. Southeast wind around 5 mph becoming north after midnight.
Friday
Mostly sunny, with a high near 79. North northeast wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 56. East northeast wind 5 to 10 mph.
Saturday
Partly sunny, with a high near 79. East northeast wind 5 to 10 mph becoming southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 59. South southeast wind 5 to 10 mph.
Sunday
Partly sunny, with a high near 81. South southeast wind 5 to 10 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Monday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Click Map For Forecast
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
12:26 pm CDT Apr 25, 2018
2pm CDT Apr 25, 2018-6pm CDT May 1, 2018
 
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