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

90°F

32°C

Humidity 63%
Wind Speed SE 10 mph
Barometer 29.90 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 4 Sep 4:55 pm CDT
Extended Forecast for

Mont Belvieu TX

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Southeast wind around 5 mph.

    High: 90 °F

    Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers after 5am. Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.

    Low: 77 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: Showers and thunderstorms likely before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 90. Calm wind becoming north around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 90 °F

    T-storms
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 90. Calm wind. Chance of precipitation is 70%.

    High: 90 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday Night

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

    Low: 77 °F

    Mostly Clear

  • Labor Day

    Labor Day: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90.

    High: 90 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Southeast wind around 5 mph.
Tonight
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers after 5am. Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.
Saturday
Showers and thunderstorms likely before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 90. Calm wind becoming north around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 90. Calm wind. Chance of precipitation is 70%.
Sunday Night
Mostly clear, with a low around 77.
Labor Day
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 77.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 77.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 76.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Thursday Night
Partly cloudy, with a low around 76.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mont Belvieu TX
 29.84°N 94.9°W (Elev. 36 ft)
Last Update:
1:21 pm CDT Sep 4, 2026
Forecast Valid:
5pm CDT Sep 4, 2026-6pm CDT Sep 11, 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