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.

Fair

79°F

26°C

Humidity 91%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 18 Aug 12:55 am CDT
Extended Forecast for

Hallettsville TX

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 75. South wind around 5 mph becoming calm.

    Low: 75 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly sunny and hot, with a high near 100. Heat index values as high as 106. Calm wind becoming south around 5 mph in the afternoon.

    High: 100 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 75. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 100. Heat index values as high as 104. South southwest wind 5 to 10 mph.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 75. South wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 102. South wind around 5 mph.

    High: 102 °F

    Hot

  • Thursday Night

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

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny and hot, with a high near 102. South southwest wind around 5 mph.

    High: 102 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph.

    Low: 76 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 75. South wind around 5 mph becoming calm.
Tuesday
Patchy fog before 9am. Otherwise, mostly sunny and hot, with a high near 100. Heat index values as high as 106. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 75. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny and hot, with a high near 100. Heat index values as high as 104. South southwest wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 75. South wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny and hot, with a high near 102. South wind around 5 mph.
Thursday Night
Mostly clear, with a low around 76. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Friday
Mostly sunny and hot, with a high near 102. South southwest wind around 5 mph.
Friday Night
Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph.
Saturday
Mostly sunny and hot, with a high near 102.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny and hot, with a high near 102.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny and hot, with a high near 101.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hallettsville TX
 29.44°N 96.91°W (Elev. 243 ft)
Last Update:
12:48 am CDT Aug 18, 2026
Forecast Valid:
1am CDT Aug 18, 2026-6pm CDT Aug 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation