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.

Fair

77°F

25°C

Humidity 95%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 27 Aug 6:15 am CDT
Extended Forecast for

Hallettsville TX

Heat Advisory August 27, 06:24am until August 27, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 27, 06:24am until August 27, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • Today

    High: 102 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 75. South southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 105. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 99 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 73. East southeast wind 5 to 10 mph becoming light and variable after midnight.

    Low: 73 °F

    Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 98. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 98 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 73. Southeast wind 5 to 10 mph becoming light south southeast after midnight.

    Low: 73 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 98. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 98 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 102. Heat index values as high as 108. Southwest wind around 5 mph becoming north northeast in the afternoon.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 75. South southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 105. Calm wind becoming east southeast around 5 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 73. East southeast wind 5 to 10 mph becoming light and variable after midnight.
Saturday
Sunny, with a high near 98. Calm wind becoming east southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 73. Southeast wind 5 to 10 mph becoming light south southeast after midnight.
Sunday
Sunny, with a high near 98. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 73. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 98. Light south southeast wind increasing to 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 74.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 98.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hallettsville TX
 29.44°N 96.91°W (Elev. 243 ft)
Last Update:
5:32 am CDT Aug 27, 2026
Forecast Valid:
6am CDT Aug 27, 2026-6pm CDT Sep 2, 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