National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Brenham, Brenham Municipal Airport (K11R)

Lat: 30.22°NLon: 96.37°WElev: 308ft.

Partly Cloudy

98°F

37°C

Humidity 37%
Wind Speed S 5 mph
Barometer 30.00 in
Dewpoint 68°F (20°C)
Visibility 7.00 mi
Heat Index103°F (39°C)
Last update 20 Aug 2:15 pm CDT
Extended Forecast for

5 Miles ESE Round Top TX

Heat Advisory August 20, 02:29pm until August 21, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 20, 02:29pm until August 21, 07:00pm

    NOW until 7:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 100 °F

    Hot

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly clear, with a low around 77. South wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 101. Heat index values as high as 106. Southwest wind 5 to 10 mph.

    High: 101 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 77. Southwest wind 5 to 10 mph.

    Low: 77 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 102. South wind around 5 mph.

    High: 102 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Mostly sunny and hot, with a high near 100. Heat index values as high as 105. South wind around 5 mph.
Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 77. South wind 5 to 10 mph.
Friday
Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 101. Heat index values as high as 106. Southwest wind 5 to 10 mph.
Friday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 77. Southwest wind 5 to 10 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 102. South wind around 5 mph.
Saturday Night
Mostly clear, with a low around 77.
Sunday
Sunny and hot, with a high near 101.
Sunday Night
Mostly clear, with a low around 77.
Monday
Sunny and hot, with a high near 101.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Mostly sunny and hot, with a high near 99.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Mostly sunny and hot, with a high near 99.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Round Top TX
 30.04°N 96.63°W (Elev. 446 ft)
Last Update:
1:21 pm CDT Aug 20, 2026
Forecast Valid:
2pm CDT Aug 20, 2026-6pm CDT Aug 26, 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