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

Hazardous Weather Conditions

Current conditions at

Robert R Wells Jr Airport (K66R)

Lat: 29.64°NLon: 96.52°WElev: 242ft.

Mostly Cloudy

74°F

23°C

Humidity 77%
Wind Speed Calm
Barometer 29.90 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 21 May 10:35 pm CDT
Extended Forecast for

Hallettsville TX

Flood Watch May 22, 07:00pm until May 25, 07:00pm
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 70. East wind around 5 mph becoming south after midnight. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers before 10pm. Increasing clouds, with a low around 71. Southeast wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 84. South southeast wind around 5 mph. Chance of precipitation is 90%.

    High: 84 °F

    Chance
    T-storms then
    Heavy Rain

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 10pm, then showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Low around 69. East southeast wind around 5 mph becoming calm. Chance of precipitation is 80%.

    Low: 69 °F

    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 10am, then showers and thunderstorms likely after 10am. Partly sunny, with a high near 83. Calm wind becoming east northeast around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 83 °F

    T-storms
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69. East northeast wind around 5 mph becoming calm.

    Low: 69 °F

    Chance
    T-storms

  • Memorial Day

    Memorial Day: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85. Calm wind becoming northeast around 5 mph.

    High: 85 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 70. East wind around 5 mph becoming south after midnight. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%.
Friday Night
A 20 percent chance of showers before 10pm. Increasing clouds, with a low around 71. Southeast wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 84. South southeast wind around 5 mph. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm before 10pm, then showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Low around 69. East southeast wind around 5 mph becoming calm. Chance of precipitation is 80%.
Sunday
Showers likely and possibly a thunderstorm before 10am, then showers and thunderstorms likely after 10am. Partly sunny, with a high near 83. Calm wind becoming east northeast around 5 mph in the afternoon. Chance of precipitation is 70%.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69. East northeast wind around 5 mph becoming calm.
Memorial Day
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85. Calm wind becoming northeast around 5 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70. Calm wind.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 86.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hallettsville TX
 29.44°N 96.91°W (Elev. 243 ft)
Last Update:
10:48 pm CDT May 21, 2026
Forecast Valid:
10pm CDT May 21, 2026-6pm CDT May 28, 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