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

Heavy to Excessive Rainfall in the Southeast U.S.; Critical Fire Weather in the Northern Plains and Upper Midwest

A slow-moving storm system will continue to produce widespread heavy showers and thunderstorms which may bring excessive rainfall and flooding as it tracks across the Southeast and Mid-Atlantic regions today into Wednesday. Gusty winds and dry fuels under potential record setting temperatures will support widespread critical fire weather in the northern Plains and Upper Midwest today. Read More >

Hazardous Weather Conditions

Current conditions at

Dallas / Addison Airport (KADS)

Lat: 32.97°NLon: 96.83°WElev: 643ft.

Clear

79°F

26°C

Humidity 45%
Wind Speed W 5 mph
Barometer 29.92 in
Dewpoint 55°F (13°C)
Visibility 13.00 mi
Heat Index80°F (27°C)
Last update 12 May 1:59 pm CDT
Extended Forecast for

Lewisville TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 82. North wind around 5 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 64. South southwest wind around 5 mph becoming southeast in the evening.

    Low: 64 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. South wind around 10 mph.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 101. West southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 101 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 75. South wind 5 to 10 mph.

    Low: 75 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 92. Southwest wind 5 to 10 mph becoming north in the afternoon.

    High: 92 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 71. North northeast wind around 5 mph becoming south southeast after midnight.

    Low: 71 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 93. South southwest wind around 10 mph.

    High: 93 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 82. North wind around 5 mph.
Tonight
Clear, with a low around 64. South southwest wind around 5 mph becoming southeast in the evening.
Tuesday
Sunny, with a high near 95. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 70. South wind around 10 mph.
Wednesday
Sunny and hot, with a high near 101. West southwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 75. South wind 5 to 10 mph.
Thursday
Partly sunny, with a high near 92. Southwest wind 5 to 10 mph becoming north in the afternoon.
Thursday Night
Mostly cloudy, with a low around 71. North northeast wind around 5 mph becoming south southeast after midnight.
Friday
Mostly cloudy, with a high near 93. South southwest wind around 10 mph.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
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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:
12:47 pm CDT May 12, 2025
Forecast Valid:
2pm CDT May 12, 2025-6pm CDT May 18, 2025
 
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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