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

78°F

26°C

Humidity 88%
Wind Speed S 6 mph
Barometer 29.92 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 27 Jul 11:55 pm CDT
Extended Forecast for

Hallettsville TX

Heat Advisory July 28, 12:00pm until July 28, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

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

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. Heat index values as high as 109. South southwest wind 5 to 10 mph.

    High: 99 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76. South wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 109. Light south wind becoming south southeast 5 to 10 mph in the morning.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 100. Light south southwest wind becoming south 5 to 10 mph in the morning.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny and hot, with a high near 101. South southwest wind around 5 mph.

    High: 101 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 99. Heat index values as high as 109. South southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 76. South wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 109. Light south wind becoming south southeast 5 to 10 mph in the morning.
Wednesday Night
Mostly clear, with a low around 76. South southeast wind 5 to 10 mph.
Thursday
Mostly sunny and hot, with a high near 100. Light south southwest wind becoming south 5 to 10 mph in the morning.
Thursday Night
Mostly clear, with a low around 76. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Mostly sunny and hot, with a high near 101. South southwest wind around 5 mph.
Friday Night
Mostly clear, with a low around 77. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny and hot, with a high near 101.
Saturday Night
Partly cloudy, with a low around 78.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 100.
Sunday Night
Mostly clear, with a low around 77.
Monday
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:
11:44 pm CDT Jul 27, 2026
Forecast Valid:
12am CDT Jul 28, 2026-6pm CDT Aug 3, 2026
 
Forecast Discussion
 
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Additional Resources

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