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

Louisiana Regional Airport (KREG)

Lat: 30.17°NLon: 90.94°WElev: 14ft.

Fair

74°F

23°C

Humidity 97%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Last update 26 Aug 6:15 am CDT
Extended Forecast for

Geismar LA

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny and hot, with a high near 97. Heat index values as high as 113. Calm wind becoming northwest around 5 mph.

    High: 97 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 77. Calm wind. Chance of precipitation is 30%.

    Low: 77 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. High near 92. Heat index values as high as 106. Calm wind becoming west around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 92 °F

    Showers
    Likely then
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly sunny, with a high near 92. Calm wind. Chance of precipitation is 60%.

    High: 92 °F

    Chance
    Showers then
    T-storms
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 75. Calm wind. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Calm wind.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 92 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny and hot, with a high near 97. Heat index values as high as 113. Calm wind becoming northwest around 5 mph.
Tonight
A chance of showers and thunderstorms before midnight, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 77. Calm wind. Chance of precipitation is 30%.
Thursday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. High near 92. Heat index values as high as 106. Calm wind becoming west around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Calm wind.
Friday
Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly sunny, with a high near 92. Calm wind. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 75. Calm wind. Chance of precipitation is 30%.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Calm wind.
Saturday Night
Mostly clear, with a low around 75. Calm wind.
Sunday
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 76. Calm wind.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming southeast around 5 mph.
Monday Night
Partly cloudy, with a low around 76. Calm wind.
Tuesday
A chance of showers and thunderstorms. Sunny, with a high near 93. Calm wind becoming southeast around 5 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Geismar LA
 30.22°N 91°W
Last Update:
5:20 am CDT Aug 26, 2026
Forecast Valid:
6am CDT Aug 26, 2026-6pm CDT Sep 1, 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