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

La Porte Municipal Airport (KT41)

Lat: 29.67°NLon: 95.06°WElev: 25ft.

Fair

73°F

23°C

Humidity 95%
Wind Speed Calm
Barometer 29.89 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 21 May 9:55 pm CDT
Extended Forecast for

Mont Belvieu TX

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 70. East wind around 5 mph becoming calm.

    Low: 70 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Light and variable wind becoming south 5 to 10 mph in the morning. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 73. South wind 5 to 10 mph.

    Low: 73 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 83. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 80%.

    High: 83 °F

    Chance
    T-storms then
    T-storms

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 72. Southeast wind around 5 mph becoming east after midnight. Chance of precipitation is 90%.

    Low: 72 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 90%.

    High: 80 °F

    T-storms

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely

  • Memorial Day

    Memorial Day: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    T-storms
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 70. East wind around 5 mph becoming calm.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Light and variable wind becoming south 5 to 10 mph in the morning. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Partly cloudy, with a low around 73. South wind 5 to 10 mph.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 83. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm. Low around 72. Southeast wind around 5 mph becoming east after midnight. Chance of precipitation is 90%.
Sunday
Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 90%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Memorial Day
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Monday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mont Belvieu TX
 29.86°N 94.87°W (Elev. 39 ft)
Last Update:
8:11 pm CDT May 21, 2026
Forecast Valid:
10pm CDT May 21, 2026-6pm CDT May 28, 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