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

85°F

29°C

Humidity 70%
Wind Speed S 5 mph
Barometer 29.96 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 26 Aug 10:55 pm CDT
Extended Forecast for

Hallettsville TX

Heat Advisory August 26, 11:13pm until August 27, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 26, 11:13pm until August 27, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • Tonight

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: 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 110. West southwest wind around 5 mph becoming calm in the afternoon.

    High: 102 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 75. West northwest wind around 5 mph becoming calm after midnight.

    Low: 75 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 109. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 99 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 73. East southeast wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 99. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71. Southeast wind 5 to 10 mph becoming light south after midnight.

    Low: 71 °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

Detailed Forecast

Tonight
Mostly clear, with a low around 76. South wind 5 to 10 mph.
Thursday
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 110. West southwest wind around 5 mph becoming calm in the afternoon.
Thursday Night
A 40 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 75. West northwest wind around 5 mph becoming calm after midnight.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 109. Calm wind becoming east southeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 73. East southeast wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny and hot, with a high near 99. Calm wind becoming east southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 71. Southeast wind 5 to 10 mph becoming light south 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 71. Southeast wind 5 to 10 mph becoming light south southeast after midnight.
Monday
Mostly sunny, with a high near 98.
Monday Night
Mostly clear, with a low around 73.
Tuesday
Mostly sunny and hot, with a high near 99.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Mostly sunny and hot, with a high near 100.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hallettsville TX
 29.44°N 96.94°W (Elev. 210 ft)
Last Update:
8:44 pm CDT Aug 26, 2026
Forecast Valid:
11pm CDT Aug 26, 2026-6pm CDT Sep 2, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation