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

Areas of Severe Thunderstorms and Excessive Rainfall Thursday

Severe thunderstorms posing a risk for strong gusts and/or large hail are possible across portions of the northern and central Plains, the Lower Missouri to Lower Ohio Valleys, and across the Mid-Atlantic Thursday afternoon and evening. Excessive rainfall may bring flash and urban flooding over the Mid-Mississippi and Ohio Valleys, and Mid-Atlantic on Thursday. Read More >

Current conditions at

Dallas / Addison Airport (KADS)

Lat: 32.97°NLon: 96.83°WElev: 643ft.

Fair

88°F

31°C

Humidity 55%
Wind Speed S 9 mph
Barometer 29.99 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 9 Jul 1:35 am CDT
Extended Forecast for

Lewisville TX

  • Overnight

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

    Low: 81 °F

    Clear

  • Thursday

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

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 79. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 100. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: Clear, with a low around 79. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Clear

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 100. South wind 5 to 10 mph.

    High: 100 °F

    Hot

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 79. South wind 5 to 10 mph.

    Low: 79 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 96. South southwest wind around 5 mph.

    High: 96 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. East southeast wind around 5 mph.

    Low: 77 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 81. South wind around 10 mph.
Thursday
Sunny and hot, with a high near 101. Heat index values as high as 104. Southwest wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 79. South wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny and hot, with a high near 100. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 79. South wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny and hot, with a high near 100. South wind 5 to 10 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 79. South wind 5 to 10 mph.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 96. South southwest wind around 5 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. East southeast wind around 5 mph.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 77.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 77.
Wednesday
Mostly sunny, with a high near 94.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewisville TX
 33.05°N 97°W (Elev. 531 ft)
Last Update:
1:26 am CDT Jul 9, 2026
Forecast Valid:
1am CDT Jul 9, 2026-6pm CDT Jul 15, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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