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

Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Hazardous Weather Conditions

Current conditions at

Port Aransas, Mustang Beach Airport (KRAS)

Lat: 27.81°NLon: 97.09°WElev: 7ft.

Mostly Cloudy

75°F

24°C

Humidity 79%
Wind Speed SW 7 mph
Barometer 30.00 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 21 May 9:35 am CDT
Extended Forecast for

Ingleside TX

Flood Watch May 21, 09:41am until May 25, 07:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch May 21, 09:41am until May 25, 07:00pm

    NOW until 7:00pm Mon

    Flood Watch

  • Today

    High: 86 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 77. Southeast wind 6 to 8 mph. Chance of precipitation is 40%.

    Low: 77 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88. Heat index values as high as 101. South wind 6 to 13 mph.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 78. Southeast wind 8 to 10 mph. Chance of precipitation is 20%.

    Low: 78 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 88. South southeast wind 8 to 14 mph. Chance of precipitation is 70%.

    High: 88 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 77. South southeast wind 6 to 11 mph. Chance of precipitation is 80%.

    Low: 77 °F

    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 87. Southeast wind 5 to 9 mph. Chance of precipitation is 60%.

    High: 87 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. East southeast wind 3 to 7 mph.

    Low: 76 °F

    Chance
    T-storms

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 86. Heat index values as high as 94. East wind 7 to 10 mph becoming south in the afternoon. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A chance of showers and thunderstorms before 4am, then a slight chance of showers between 4am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 77. Southeast wind 6 to 8 mph. Chance of precipitation is 40%.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88. Heat index values as high as 101. South wind 6 to 13 mph.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 78. Southeast wind 8 to 10 mph. Chance of precipitation is 20%.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 88. South southeast wind 8 to 14 mph. Chance of precipitation is 70%.
Saturday Night
Showers and possibly a thunderstorm. Low around 77. South southeast wind 6 to 11 mph. Chance of precipitation is 80%.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 87. Southeast wind 5 to 9 mph. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. East southeast wind 3 to 7 mph.
Memorial Day
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Light and variable wind becoming east 5 to 9 mph in the morning.
Monday Night
Partly cloudy, with a low around 78.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 80.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ingleside TX
 27.86°N 97.22°W
Last Update:
2:56 am CDT May 21, 2026
Forecast Valid:
9am CDT May 21, 2026-6pm CDT May 27, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation