Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Hazardous Weather Conditions

Current conditions at

Dallas / Addison Airport (KADS)

Lat: 32.97°NLon: 96.83°WElev: 643ft.

A Few Clouds

100°F

38°C

Humidity 24%
Wind Speed SE 12 G 22 mph
Barometer 29.98 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 29 Aug 3:47 pm CDT
Extended Forecast for

Lewisville TX

  • Tonight

    Tonight: Mostly clear, with a low around 81. South southeast wind 5 to 10 mph.

    Low: 81 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 102. South wind 5 to 10 mph.

    High: 102 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 81. South wind around 10 mph.

    Low: 81 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 102. Heat index values as high as 105. South wind 5 to 10 mph.

    High: 102 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 81. South southeast wind 5 to 10 mph.

    Low: 81 °F

    Mostly Clear

  • Tuesday

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

    High: 100 °F

    Hot

  • Tuesday Night

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

    Low: 81 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 101. South wind around 5 mph.

    High: 101 °F

    Hot

  • Wednesday Night

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

    Low: 81 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 81. South southeast wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 102. South wind 5 to 10 mph.
Sunday Night
Clear, with a low around 81. South wind around 10 mph.
Monday
Sunny and hot, with a high near 102. Heat index values as high as 105. South wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 81. South southeast wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 100. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 81. Southeast wind around 10 mph.
Wednesday
Sunny and hot, with a high near 101. South wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 81. South southeast wind 5 to 10 mph.
Thursday
Sunny and hot, with a high near 101.
Thursday Night
Mostly clear, with a low around 81.
Friday
Sunny and hot, with a high near 102.
Friday Night
Mostly clear, with a low around 81.
Saturday
Sunny and hot, with a high near 102.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewisville TX
 33.05°N 97°W (Elev. 531 ft)
3:31 pm CDT Aug 29, 2026
4pm CDT Aug 29, 2026-6pm CDT Sep 5, 2026
 
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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