Heavy Rainfall, Flooding, And Severe Thunderstorm Threats From The Mid South To The Great Lakes Today And Tonight

A slow moving low pressure system and cold front will bring the potential for severe thunderstorms capable of producing damaging winds and isolated tornadoes from portions of the Mid South to the Midwest and Great Lakes today and tonight. Heavy rainfall could also lead to flooding concerns. The severe weather threat will shift to the Mid Atlantic and Northeast on Wednesday. Read More >

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

A Few Clouds

89°F

32°C

Humidity 53%
Wind Speed SE 12 mph
Barometer 29.88 in (1009.7 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 25 Sep 5:51 pm CDT
Extended Forecast for

San Antonio TX

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 2am.  Partly cloudy, with a low around 74. Southeast wind 5 to 10 mph.

    Mostly Clear
    then Slight
    Chance
    T-storms

    Low: 74 °F

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 2pm.  Mostly cloudy, with a high near 87. Southeast wind 5 to 10 mph becoming northeast in the afternoon.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    T-storms
    Likely

    High: 87 °F

  • Wednesday
    Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 8pm.  Cloudy, with a low around 66. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    T-storms
    Likely then
    Chance
    T-storms

    Low: 66 °F

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms.  Cloudy, with a high near 77. North wind 5 to 10 mph.

    Chance
    T-storms

    High: 77 °F

  • Thursday
    Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly before 8pm.  Mostly cloudy, with a low around 69. East northeast wind around 5 mph becoming calm  in the evening.

    Chance
    T-storms

    Low: 69 °F

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly after 8am.  Mostly cloudy, with a high near 82. Calm wind becoming east southeast around 5 mph in the afternoon.

    Chance
    Showers

    High: 82 °F

  • Friday
    Night

    Friday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 70. East southeast wind around 5 mph.

    Chance
    Showers

    Low: 70 °F

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms.  Cloudy, with a high near 82. East wind around 5 mph.

    Chance
    Showers

    High: 82 °F

  • Saturday
    Night

    Saturday Night: A 50 percent chance of showers and thunderstorms, mainly before 8pm.  Mostly cloudy, with a low around 70. East wind around 5 mph.

    Chance
    Showers then
    Slight Chance
    T-storms

    Low: 70 °F

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 74. Southeast wind 5 to 10 mph.
Wednesday
Showers and thunderstorms likely, mainly after 2pm. Mostly cloudy, with a high near 87. Southeast wind 5 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely, mainly before 8pm. Cloudy, with a low around 66. North northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 40 percent chance of showers and thunderstorms. Cloudy, with a high near 77. North wind 5 to 10 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 69. East northeast wind around 5 mph becoming calm in the evening.
Friday
A 50 percent chance of showers and thunderstorms, mainly after 8am. Mostly cloudy, with a high near 82. Calm wind becoming east southeast around 5 mph in the afternoon.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. East southeast wind around 5 mph.
Saturday
A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 82. East wind around 5 mph.
Saturday Night
A 50 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 70. East wind around 5 mph.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 8am. Cloudy, with a high near 83.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Monday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Tuesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Click Map For Forecast
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
5:43 pm CDT Sep 25, 2018
6pm CDT Sep 25, 2018-6pm CDT Oct 2, 2018
 
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Additional Resources

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Hourly Weather Forecast

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