National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Hazardous Weather Conditions

Current conditions at

Robstown, Nueces County Airport (KRBO)

Lat: 27.78°NLon: 97.69°WElev: 79ft.

Thunderstorm in Vicinity

N/A

Humidity NA
Wind Speed Calm
Barometer 30.05 in
Dewpoint N/A
Visibility NA
Last update 18 Sep 5:35 am CDT
Extended Forecast for

San Patricio TX

Flood Advisory until September 18, 08:15am
Click here for hazard details and duration
Flood Advisory
  •  
    Flood Advisory until September 18, 08:15am

    NOW until 8:15am Fri

    Flood Advisory

  • Overnight

    Low: 78 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly before 3pm. Partly sunny, with a high near 94. Heat index values as high as 109. East wind 6 to 11 mph, with gusts as high as 18 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 94 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. East southeast wind 5 to 10 mph becoming light and variable in the evening.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 95. Heat index values as high as 107. Calm wind becoming east southeast 5 to 9 mph in the afternoon.

    High: 95 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. East southeast wind 6 to 11 mph becoming light south southeast in the evening. Winds could gust as high as 18 mph.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 97. Calm wind becoming east southeast 5 to 8 mph in the afternoon.

    High: 97 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 77. East southeast wind 6 to 11 mph becoming light south southeast after midnight. Winds could gust as high as 18 mph.

    Low: 77 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Calm wind becoming east southeast 5 to 8 mph in the afternoon.

    High: 97 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78. East northeast wind around 5 mph.
Friday
A 50 percent chance of showers and thunderstorms, mainly before 3pm. Partly sunny, with a high near 94. Heat index values as high as 109. East wind 6 to 11 mph, with gusts as high as 18 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Mostly clear, with a low around 75. East southeast wind 5 to 10 mph becoming light and variable in the evening.
Saturday
Sunny, with a high near 95. Heat index values as high as 107. Calm wind becoming east southeast 5 to 9 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 75. East southeast wind 6 to 11 mph becoming light south southeast in the evening. Winds could gust as high as 18 mph.
Sunday
Sunny and hot, with a high near 97. Calm wind becoming east southeast 5 to 8 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 77. East southeast wind 6 to 11 mph becoming light south southeast after midnight. Winds could gust as high as 18 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Calm wind becoming east southeast 5 to 8 mph in the afternoon.
Monday Night
Mostly clear, with a low around 76. East southeast wind 6 to 11 mph becoming light southeast in the evening. Winds could gust as high as 18 mph.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97.
Wednesday Night
Partly cloudy, with a low around 77.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Patricio TX
 27.97°N 97.76°W
Last Update:
1:46 am CDT Sep 18, 2026
Forecast Valid:
5am CDT Sep 18, 2026-6pm CDT Sep 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation