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

Robert R Wells Jr Airport (K66R)

Lat: 29.64°NLon: 96.52°WElev: 242ft.

Overcast

89°F

32°C

Humidity 63%
Wind Speed SW 10 mph
Barometer 30.01 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 2 Sep 10:35 am CDT
Extended Forecast for

Hallettsville TX

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 106. Southwest wind around 5 mph.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 77. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 109. South southwest wind 5 to 10 mph becoming east southeast in the afternoon.

    High: 99 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 76. Southeast wind 5 to 10 mph becoming light south southeast after midnight. Winds could gust as high as 20 mph.

    Low: 76 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 97. Light southeast wind increasing to 5 to 10 mph in the afternoon. Chance of precipitation is 30%.

    High: 97 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 74. Southeast wind 5 to 10 mph becoming light and variable after midnight.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 97 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Sunny, with a high near 97. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 97 °F

    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 106. Southwest wind around 5 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 77. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 109. South southwest wind 5 to 10 mph becoming east southeast in the afternoon.
Thursday Night
Partly cloudy, with a low around 76. Southeast wind 5 to 10 mph becoming light south southeast after midnight. Winds could gust as high as 20 mph.
Friday
A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 97. Light southeast wind increasing to 5 to 10 mph in the afternoon. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 74. Southeast wind 5 to 10 mph becoming light and variable after midnight.
Saturday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm in the evening.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Sunny, with a high near 97. Calm wind becoming east southeast around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 74.
Labor Day
Sunny, with a high near 97.
Monday Night
Mostly clear, with a low around 74.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 97.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hallettsville TX
 29.46°N 96.94°W (Elev. 276 ft)
Last Update:
10:42 am CDT Sep 2, 2026
Forecast Valid:
10am CDT Sep 2, 2026-6pm CDT Sep 8, 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