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

Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Current conditions at

Patterson Memorial (KPTN)

Lat: 29.72°NLon: 91.33°WElev: 10ft.

Fair

79°F

26°C

Humidity NA
Wind Speed SW 3 mph
Barometer 30.02 in (1016.7 mb)
Dewpoint N/A
Visibility 10.00 mi
Last update 20 Aug 12:56 am CDT
Extended Forecast for

2 Miles NW Charenton LA

Heat Advisory August 20, 12:00pm until August 20, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Partly cloudy, with a low around 76. Southwest wind around 5 mph.

    Low: 76 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 95. Heat index values as high as 107. West wind 5 to 10 mph.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. Southwest wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 96. Heat index values as high as 110. West wind around 5 mph.

    High: 96 °F

    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 76. West wind 5 to 10 mph.

    Low: 76 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. West wind around 5 mph.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 75. Southwest wind 5 to 10 mph becoming light in the evening.

    Low: 75 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny and hot, with a high near 97. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 97 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76. Southwest wind 5 to 10 mph becoming light in the evening.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 76. Southwest wind around 5 mph.
Thursday
Sunny, with a high near 95. Heat index values as high as 107. West wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 76. Southwest wind 5 to 10 mph.
Friday
Sunny, with a high near 96. Heat index values as high as 110. West wind around 5 mph.
Friday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 76. West wind 5 to 10 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. West wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 75. Southwest wind 5 to 10 mph becoming light in the evening.
Sunday
Sunny and hot, with a high near 97. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 76. Southwest wind 5 to 10 mph becoming light in the evening.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.
Monday Night
Partly cloudy, with a low around 76.
Tuesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 95.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Charenton LA
 29.89°N 91.56°W
Last Update:
12:45 am CDT Aug 20, 2026
Forecast Valid:
1am CDT Aug 20, 2026-6pm CDT Aug 26, 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