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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Current conditions at

Natchitoches, Natchitoches Regional Airport (KIER)

Lat: 31.74°NLon: 93.1°WElev: 121ft.

Fair

91°F

33°C

Humidity 57%
Wind Speed Calm
Barometer 30.11 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 16 Aug 12:35 pm CDT
Extended Forecast for

5 Miles N Marthaville LA

Heat Advisory August 16, 12:58pm until August 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 16, 12:58pm until August 17, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 98 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 76. Calm wind.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 99. Heat index values as high as 110. Calm wind.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Calm wind becoming northeast around 5 mph.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 98. Heat index values as high as 109. Calm wind.
Tonight
Mostly clear, with a low around 76. Calm wind.
Sunday
A 20 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 99. Heat index values as high as 110. Calm wind.
Sunday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 75. Calm wind.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Calm wind becoming northeast around 5 mph.
Monday Night
Partly cloudy, with a low around 74.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73.
Thursday
Showers likely and possibly a thunderstorm. Mostly sunny and hot, with a high near 95. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N Marthaville LA
 31.88°N 93.4°W (Elev. 197 ft)
Last Update:
12:30 pm CDT Aug 16, 2025
Forecast Valid:
12pm CDT Aug 16, 2025-6pm CDT Aug 22, 2025
 
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