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.

Fair

83°F

28°C

Humidity 88%
Wind Speed S 7 mph
Barometer 29.78 in
Dewpoint 79°F (26°C)
Visibility 7.00 mi
Heat Index94°F (34°C)
Last update 18 Jun 10:35 pm CDT
Extended Forecast for

Brenham TX

Heat Advisory June 18, 10:44pm until June 20, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 18, 10:44pm until June 20, 10:00pm

    NOW until 10:00pm Sat

    Heat Advisory

  • Tonight

    Low: 79 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 92. Heat index values as high as 106. Southeast wind 5 to 10 mph.

    High: 92 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms, mainly before 3am. Mostly cloudy, with a low around 78. South wind 5 to 10 mph. New rainfall amounts between a quarter and half of an inch possible.

    Low: 78 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Heat index values as high as 102. South wind 5 to 10 mph.

    High: 90 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 77. Southeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 77 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm. Mostly sunny, with a high near 91. Chance of precipitation is 20%.

    High: 91 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 79. Southeast wind around 10 mph.
Juneteenth
A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 92. Heat index values as high as 106. Southeast wind 5 to 10 mph.
Friday Night
A 50 percent chance of showers and thunderstorms, mainly before 3am. Mostly cloudy, with a low around 78. South wind 5 to 10 mph. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Heat index values as high as 102. South wind 5 to 10 mph.
Saturday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 77. Southeast wind around 5 mph. Chance of precipitation is 20%.
Sunday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm. Mostly sunny, with a high near 91. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 78.
Monday
Mostly sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Partly sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Mostly sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Mostly sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brenham TX
 30.15°N 96.39°W (Elev. 348 ft)
Last Update:
8:11 pm CDT Jun 18, 2026
Forecast Valid:
10pm CDT Jun 18, 2026-6pm CDT Jun 25, 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