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

76°F

24°C

Humidity 98%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index75°F (24°C)
Last update 21 Aug 5:35 am CDT
Extended Forecast for

Hallettsville TX

Heat Advisory August 21, 05:47am until August 23, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 21, 05:47am until August 23, 07:00pm

    NOW until 7:00pm Sun

    Heat Advisory

  • Today

    High: 103 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 74. South wind 5 to 10 mph.

    Low: 74 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 104. Heat index values as high as 109. Southwest wind around 5 mph becoming south southeast in the afternoon.

    High: 104 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74. South wind 5 to 10 mph.

    Low: 74 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 104. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 104 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. South southeast wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 103. South southwest wind 5 to 10 mph.

    High: 103 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 74. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Today
Mostly sunny and hot, with a high near 103. Heat index values as high as 110. Calm wind becoming south southwest around 5 mph in the morning.
Tonight
Partly cloudy, with a low around 74. South wind 5 to 10 mph.
Saturday
Mostly sunny and hot, with a high near 104. Heat index values as high as 109. Southwest wind around 5 mph becoming south southeast in the afternoon.
Saturday Night
Mostly clear, with a low around 74. South wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 104. Calm wind becoming south southeast around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 75. South southeast wind 5 to 10 mph.
Monday
Sunny and hot, with a high near 103. South southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 74. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny and hot, with a high near 102. South southwest wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
Sunny and hot, with a high near 102.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
Sunny and hot, with a high near 101.
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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:
5:34 am CDT Aug 21, 2026
Forecast Valid:
5am CDT Aug 21, 2026-6pm CDT Aug 27, 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