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

Dallas/Fort Worth International Airport (KDFW)

Lat: 32.9°NLon: 97.02°WElev: 541ft.

A Few Clouds

83°F

28°C

Humidity 67%
Wind Speed S 18 mph
Barometer 29.78 in (1007.6 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 21 Jun 9:53 am CDT
Extended Forecast for

Lewisville TX

  • Today

    Today: Mostly sunny, with a high near 93. Heat index values as high as 103. South wind around 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 79. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 79 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 97. Heat index values as high as 109. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 97 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 79. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 79 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 97. South wind around 10 mph. Chance of precipitation is 10%.

    High: 97 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 79. South wind around 10 mph.

    Low: 79 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 96. South wind 5 to 10 mph.

    High: 96 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. South wind around 10 mph.

    Low: 78 °F

    Mostly Clear
    then Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 96. South wind 5 to 10 mph.

    High: 96 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 93. Heat index values as high as 103. South wind around 15 mph, with gusts as high as 25 mph.
Tonight
A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 79. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
A 20 percent chance of showers and thunderstorms before 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 97. Heat index values as high as 109. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 79. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 97. South wind around 10 mph. Chance of precipitation is 10%.
Tuesday Night
Mostly clear, with a low around 79. South wind around 10 mph.
Wednesday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 96. South wind 5 to 10 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. South wind around 10 mph.
Thursday
Mostly sunny, with a high near 96. South wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 79.
Friday
Mostly sunny, with a high near 97.
Friday Night
Partly cloudy, with a low around 79.
Saturday
Mostly sunny and hot, with a high near 100.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewisville TX
 33.05°N 97°W (Elev. 531 ft)
Last Update:
6:06 am CDT Jun 21, 2026
Forecast Valid:
10am CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
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Additional Resources

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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