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Hazardous Weather Conditions

Current conditions at

Dallas / Addison Airport (KADS)

Lat: 32.97°NLon: 96.83°WElev: 643ft.

Fair

91°F

33°C

Humidity 44%
Wind Speed SE 10 mph
Barometer 29.98 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 13 Sep 9:55 pm CDT
Extended Forecast for

Lewisville TX

Heat Advisory September 13, 10:18pm until September 14, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 13, 10:18pm until September 14, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Tonight

    Low: 81 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 101. Heat index values as high as 104. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 101 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 81. South southeast wind 10 to 15 mph.

    Low: 81 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Heat index values as high as 104. South wind around 10 mph, with gusts as high as 20 mph.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 81. South southeast wind around 10 mph.

    Low: 81 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 100. South wind 5 to 10 mph.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 81. Southeast wind 5 to 10 mph.

    Low: 81 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99. South wind 5 to 10 mph.

    High: 99 °F

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 81. South wind around 10 mph.
Monday
Sunny and hot, with a high near 101. Heat index values as high as 104. South wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 81. South southeast wind 10 to 15 mph.
Tuesday
Sunny and hot, with a high near 101. Heat index values as high as 104. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 81. South southeast wind around 10 mph.
Wednesday
Sunny and hot, with a high near 100. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 81. Southeast wind 5 to 10 mph.
Thursday
Sunny and hot, with a high near 99. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 79. Southeast wind 5 to 10 mph.
Friday
Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 78.
Saturday
Sunny, with a high near 98.
Saturday Night
Mostly clear, with a low around 77.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewisville TX
 33.05°N 97°W (Elev. 531 ft)
Last Update:
8:36 pm CDT Sep 13, 2026
Forecast Valid:
10pm CDT Sep 13, 2026-6pm CDT Sep 20, 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