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

Hazardous Weather Conditions

Current conditions at

La Porte Municipal Airport (KT41)

Lat: 29.67°NLon: 95.06°WElev: 25ft.

Partly Cloudy

92°F

33°C

Humidity 66%
Wind Speed S 15 mph
Barometer 29.73 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index109°F (43°C)
Last update 18 Jun 1:55 pm CDT
Extended Forecast for

Baytown TX

Heat Advisory June 18, 08:00pm until June 20, 10:00pm
Extreme Heat Warning until June 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning
  •  
    Extreme Heat Warning until June 18, 08:00pm

    NOW until 8:00pm Thu

    Extreme Heat Warning

  • This Afternoon

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 81. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 81 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 90. Heat index values as high as 108. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 90 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 80. South wind 5 to 10 mph.

    Low: 80 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before 7am. Partly sunny, with a high near 89. Southeast wind 5 to 10 mph.

    High: 89 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 80.

    Low: 80 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: A chance of thunderstorms before 7am. Mostly sunny, with a high near 90. Chance of precipitation is 30%.

    High: 90 °F

    Chance
    T-storms then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 81.

    Low: 81 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 91. Heat index values as high as 111. South wind around 15 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 81. South wind 5 to 10 mph, with gusts as high as 20 mph.
Juneteenth
Mostly sunny, with a high near 90. Heat index values as high as 108. South wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 80. South wind 5 to 10 mph.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 7am. Partly sunny, with a high near 89. Southeast wind 5 to 10 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 80.
Sunday
A chance of thunderstorms before 7am. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 81.
Monday
Mostly sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 80.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
Partly cloudy, with a low around 78.
Wednesday
Mostly sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Baytown TX
 29.77°N 94.97°W (Elev. 23 ft)
Last Update:
1:21 pm CDT Jun 18, 2026
Forecast Valid:
2pm CDT Jun 18, 2026-6pm CDT Jun 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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