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

Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

Hazardous Weather Conditions

Current conditions at

Texarkana, Texarkana Regional-Webb Field (KTXK)

Lat: 33.46°NLon: 93.99°WElev: 387ft.

Fair

101°F

38°C

Humidity 31%
Wind Speed SW 9 mph
Barometer 29.93 in (1012.9 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 18 Aug 5:53 pm CDT
Extended Forecast for

Patmos AR

Heat Advisory August 18, 06:14pm until August 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 18, 06:14pm until August 19, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • Tonight

    Low: 78 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 102. Heat index values as high as 106. Calm wind becoming southwest around 5 mph.

    High: 102 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 78. Calm wind.

    Low: 78 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and hot, with a high near 100. Heat index values as high as 104. Calm wind.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 76. Calm wind.

    Low: 76 °F

    Partly Cloudy

  • Friday

    Friday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 78. Calm wind.
Wednesday
Sunny and hot, with a high near 102. Heat index values as high as 106. Calm wind becoming southwest around 5 mph.
Wednesday Night
Partly cloudy, with a low around 78. Calm wind.
Thursday
Sunny and hot, with a high near 100. Heat index values as high as 104. Calm wind.
Thursday Night
Partly cloudy, with a low around 76. Calm wind.
Friday
Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 73.
Saturday
Sunny and hot, with a high near 99.
Saturday Night
Mostly clear, with a low around 73.
Sunday
Sunny and hot, with a high near 98.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny and hot, with a high near 99.
Monday Night
A 20 percent chance of showers. Mostly clear, with a low around 76.
Tuesday
A 20 percent chance of showers. Sunny and hot, with a high near 99.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Patmos AR
 33.51°N 93.56°W (Elev. 299 ft)
Last Update:
6:05 pm CDT Aug 18, 2026
Forecast Valid:
6pm CDT Aug 18, 2026-6pm CDT Aug 25, 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