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

Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Dallas / Addison Airport (KADS)

Lat: 32.97°NLon: 96.83°WElev: 643ft.

Clear

46°F

8°C

Humidity 57%
Wind Speed E 5 mph
Barometer 30.24 in
Dewpoint 32°F (0°C)
Visibility 13.00 mi
Wind Chill44°F (7°C)
Last update 8 Dec 7:47 pm CST
Extended Forecast for

Lewisville TX

  • Tonight

    Tonight: Patchy frost after 1am. Otherwise, clear, with a low around 37. Calm wind becoming south around 5 mph after midnight.

    Low: 37 °F

    Clear then
    Patchy Frost

  • Tuesday

    Tuesday: Patchy frost before 8am. Otherwise, sunny, with a high near 65. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 65 °F

    Patchy Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 45. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 45 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63. Southwest wind 5 to 10 mph becoming north northeast in the morning.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 40. North northeast wind around 5 mph becoming calm in the evening.

    Low: 40 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 65. Calm wind becoming south southwest around 5 mph in the morning.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47. South southeast wind around 5 mph.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66. South southeast wind 5 to 10 mph becoming north northeast in the afternoon.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41. North northeast wind around 10 mph.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy frost after 1am. Otherwise, clear, with a low around 37. Calm wind becoming south around 5 mph after midnight.
Tuesday
Patchy frost before 8am. Otherwise, sunny, with a high near 65. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Clear, with a low around 45. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 63. Southwest wind 5 to 10 mph becoming north northeast in the morning.
Wednesday Night
Mostly clear, with a low around 40. North northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 65. Calm wind becoming south southwest around 5 mph in the morning.
Thursday Night
Mostly clear, with a low around 47. South southeast wind around 5 mph.
Friday
Sunny, with a high near 66. South southeast wind 5 to 10 mph becoming north northeast in the afternoon.
Friday Night
Partly cloudy, with a low around 41. North northeast wind around 10 mph.
Saturday
Partly sunny, with a high near 56.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
Partly sunny, with a high near 58.
Sunday Night
Mostly cloudy, with a low around 47.
Monday
Partly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewisville TX
 33.05°N 96.97°W (Elev. 456 ft)
Last Update:
5:06 pm CST Dec 8, 2025
Forecast Valid:
8pm CST Dec 8, 2025-6pm CST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation