Severe Thunderstorm and Excessive Rainfall Potential for the Central U.S. Today

Severe thunderstorms with a threat for large hail, isolated damaging winds and possibly a tornado are expected in parts of eastern Colorado today from mid afternoon to early evening. Several days of heavy rainfall will begin today over the western Gulf Coast where Flood Watches and excessive rainfall outlooks have been issued for today, Saturday, and Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Port Lavaca - Calhoun County Airport (KPKV)

Lat: 28.65°NLon: 96.68°WElev: 27ft.

Partly Cloudy

80°F

27°C

Humidity 76%
Wind Speed S 8 mph
Barometer 29.89 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 21 May 3:35 pm CDT
Extended Forecast for

Seadrift TX

Flood Watch May 21, 03:51pm until May 25, 07:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch May 21, 03:51pm until May 25, 07:00pm

    NOW until 7:00pm Mon

    Flood Watch

  • This Afternoon

    High: 83 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 11pm.  Mostly cloudy, with a low around 74. South wind 3 to 6 mph.

    Low: 74 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 4pm.  Mostly sunny, with a high near 86. Heat index values as high as 93. South wind 5 to 11 mph.

    High: 86 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms between 7pm and 8pm.  Partly cloudy, with a low around 77. South southeast wind 6 to 8 mph.  Chance of precipitation is 20%.

    Low: 77 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm.  High near 84. Southeast wind 6 to 11 mph.  Chance of precipitation is 80%.

    High: 84 °F

    Chance
    T-storms then
    T-storms

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm.  Low around 74. East southeast wind 5 to 8 mph.  Chance of precipitation is 90%.

    Low: 74 °F

    Showers

  • Sunday

    Sunday: Showers and thunderstorms likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 85. Northeast wind 5 to 9 mph becoming southeast in the afternoon.  Chance of precipitation is 70%.

    High: 85 °F

    T-storms
    Likely then
    Showers
    Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 73. East southeast wind around 6 mph becoming calm  in the evening.

    Low: 73 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 83. Heat index values as high as 87. South southeast wind around 9 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 11pm. Mostly cloudy, with a low around 74. South wind 3 to 6 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 4pm. Mostly sunny, with a high near 86. Heat index values as high as 93. South wind 5 to 11 mph.
Friday Night
A slight chance of showers and thunderstorms between 7pm and 8pm. Partly cloudy, with a low around 77. South southeast wind 6 to 8 mph. Chance of precipitation is 20%.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 84. Southeast wind 6 to 11 mph. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm. Low around 74. East southeast wind 5 to 8 mph. Chance of precipitation is 90%.
Sunday
Showers and thunderstorms likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. Northeast wind 5 to 9 mph becoming southeast in the afternoon. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. East southeast wind around 6 mph becoming calm in the evening.
Memorial Day
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Northeast wind 5 to 7 mph becoming southeast in the afternoon.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78.
Wednesday
Showers and thunderstorms likely. Partly sunny, with a high near 86. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Seadrift TX
 28.42°N 96.71°W
2:46 pm CDT May 21, 2026
3pm CDT May 21, 2026-6pm CDT May 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

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