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.

Mostly Cloudy

82°F

28°C

Humidity 84%
Wind Speed S 5 mph
Barometer 29.99 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 29 Jun 5:35 am CDT
Extended Forecast for

Mont Belvieu TX

  • Today

    Today: Mostly sunny, with a high near 90. Heat index values as high as 103. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 90 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 77. South wind 5 to 10 mph.

    Low: 77 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms between noon and 1pm. Partly sunny, with a high near 90. Heat index values as high as 102. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 20%.

    High: 90 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 77. South wind 5 to 10 mph becoming light in the evening.

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon.

    High: 91 °F

    Sunny

  • Wednesday Night

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

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

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

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 91.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 90. Heat index values as high as 103. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 77. South wind 5 to 10 mph.
Tuesday
A slight chance of showers and thunderstorms between noon and 1pm. Partly sunny, with a high near 90. Heat index values as high as 102. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 77. South wind 5 to 10 mph becoming light in the evening.
Wednesday
Sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 77.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
Thursday Night
Mostly clear, with a low around 77.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 77.
Independence Day
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 77.
Sunday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 91.
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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:
1:21 am CDT Jun 29, 2026
Forecast Valid:
5am CDT Jun 29, 2026-6pm CDT Jul 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation