Enhanced Risk for Severe Thunderstorms Across the Upper Midwest; Flash Flooding Possible from the Upper Midwest to Southern Plains and Desert Southwest Through Friday

Portions of the Upper Midwest will see an increased threat for severe thunderstorms through this evening, with a few strong tornadoes possible. The same region remains on alert for additional flash flood concerns. Heavy rainfall may lead to flash flooding across the Desert Southwest today, and Southern Plains by Friday. Finally, Major-to-record river flooding continues across the Carolinas. Read More >

Hazardous Weather Conditions

Current conditions at

Dallas/Fort Worth International Airport (KDFW)

Lat: 32.9°NLon: 97.02°WElev: 541ft.

Mostly Cloudy

31°C

87°F

Humidity 59%
Wind Speed SE 19 km/h
Barometer 1012.2 mb (29.92 in)
Dewpoint 22°C (71°F)
Visibility 16 km
Heat Index34°C (93°F)
Last update 20 Sep 1:53 pm CDT
Extended Forecast for

Lewisville TX

  • This
    Afternoon

    This Afternoon: Mostly sunny, with a high near 32. South wind around 15 km/h.

    Mostly Sunny

    High: 32 °C

  • Tonight

    Tonight: Mostly cloudy, with a low around 24. South wind 10 to 20 km/h.

    Mostly Cloudy

    Low: 24 °C

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 2pm.  Mostly cloudy, with a high near 30. South southeast wind around 15 km/h.  Chance of precipitation is 70%. New rainfall amounts between 7.5 mm and 1 cm possible.

    Chance
    T-storms then
    T-storms
    Likely

    High: 30 °C

  • Friday
    Night

    Friday Night: Showers and thunderstorms.  Low around 21. East southeast wind 10 to 15 km/h.  Chance of precipitation is 80%.

    T-storms

    Low: 21 °C

  • Saturday

    Saturday: Showers and thunderstorms.  High near 24. East wind 10 to 15 km/h becoming north in the morning.  Chance of precipitation is 80%.

    T-storms

    High: 24 °C

  • Saturday
    Night

    Saturday Night: Showers and thunderstorms likely.  Cloudy, with a low around 19. North northeast wind 10 to 15 km/h.  Chance of precipitation is 70%.

    T-storms
    Likely

    Low: 19 °C

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly before 8am.  Mostly cloudy, with a high near 27. East wind around 10 km/h.  Chance of precipitation is 60%.

    T-storms
    Likely

    High: 27 °C

  • Sunday
    Night

    Sunday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 21. East wind around 10 km/h.

    Chance
    T-storms

    Low: 21 °C

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly before 8am.  Partly sunny, with a high near 29. South southeast wind around 10 km/h.

    Chance
    T-storms

    High: 29 °C

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 32. South wind around 15 km/h.
Tonight
Mostly cloudy, with a low around 24. South wind 10 to 20 km/h.
Friday
Showers and thunderstorms likely, mainly after 2pm. Mostly cloudy, with a high near 30. South southeast wind around 15 km/h. Chance of precipitation is 70%. New rainfall amounts between 7.5 mm and 1 cm possible.
Friday Night
Showers and thunderstorms. Low around 21. East southeast wind 10 to 15 km/h. Chance of precipitation is 80%.
Saturday
Showers and thunderstorms. High near 24. East wind 10 to 15 km/h becoming north in the morning. Chance of precipitation is 80%.
Saturday Night
Showers and thunderstorms likely. Cloudy, with a low around 19. North northeast wind 10 to 15 km/h. Chance of precipitation is 70%.
Sunday
Showers and thunderstorms likely, mainly before 8am. Mostly cloudy, with a high near 27. East wind around 10 km/h. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 21. East wind around 10 km/h.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Partly sunny, with a high near 29. South southeast wind around 10 km/h.
Monday Night
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 22.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 31.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 21.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 28.
Click Map For Forecast
Point Forecast:
Lewisville TX
 33.05°N 97°W (Elev. 162 m)
4:20 am CDT Sep 20, 2018
2pm CDT Sep 20, 2018-6pm CDT Sep 26, 2018
 
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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