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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Hazardous Weather Conditions

Current conditions at

Dallas / Addison Airport (KADS)

Lat: 32.97°NLon: 96.83°WElev: 643ft.

Overcast

77°F

25°C

Humidity 100%
Wind Speed N 10 mph
Barometer 30.07 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 2 Oct 12:47 pm CDT
Extended Forecast for

Lewisville TX

Flood Watch October 2, 01:03pm until October 2, 07:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch October 2, 01:03pm until October 2, 07:00pm

    NOW until 7:00pm Fri

    Flood Watch

  • This Afternoon

    High: 78 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 69. North northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms, mainly between 10am and 4pm. Cloudy, with a high near 78. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers after 4am. Mostly cloudy, with a low around 69. North northeast wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A 10 percent chance of showers before 7am. Partly sunny, with a high near 84. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 84 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 66. North northeast wind 5 to 10 mph.

    Low: 66 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 84. North northeast wind 5 to 10 mph.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 63. North northeast wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Clear

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. North northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 69. North northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms, mainly between 10am and 4pm. Cloudy, with a high near 78. Northeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers after 4am. Mostly cloudy, with a low around 69. North northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday
A 10 percent chance of showers before 7am. Partly sunny, with a high near 84. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 66. North northeast wind 5 to 10 mph.
Monday
Sunny, with a high near 84. North northeast wind 5 to 10 mph.
Monday Night
Clear, with a low around 63. North northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 83. East northeast wind around 5 mph.
Tuesday Night
Clear, with a low around 63.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Clear, with a low around 64.
Thursday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewisville TX
 33.05°N 97°W (Elev. 531 ft)
Last Update:
11:51 am CDT Oct 2, 2026
Forecast Valid:
1pm CDT Oct 2, 2026-6pm CDT Oct 8, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation